
1) Coarse woolen fabric 2) Worm used as bait 3) Worsted yarn
Found on
https://www.crosswordclues.com/clue/caddis

The term Caddis is used to describe a large diverse family of aquatic insects characterized by down wings. Also the American term for the sedge fly.
Found on
http://english-fly-fishing-flies.s3-website-eu-west-1.amazonaws.com/glossar

A common aquatic insect found in many streams and rivers. They are a favorite food of trout and other fish. They have a number of distinct stages, including an underwater pupa and an above the water surface adult. Caddis have tent shaped wings and are known in both lakes and rivers to fly down upon he water to deposit their eggs.
Found on
http://firstcastflyfishing.blogspot.co.uk/p/glossary-of-terms.html

one of the three most important aquatic insects imitated by fly fishers; found around the world in all freshwater habitats; adult resembles a moth when in flight; at rest the wings are folded in a tent shape down the back; the most important aquatic state of the caddis is the pupa, which is its emerging stage (also see larva, pupa and emerger).
Found on
http://howtoflyfish.orvis.com/glossary/beginners-fly-fishing-glossary

worsted yarn
Found on
http://phrontistery.info/c.html

• (n.) A kind of worsted lace or ribbon. • (n.) The larva of a caddice fly. These larvae generally live in cylindrical cases, open at each end, and covered externally with pieces of broken shells, gravel, bits of wood, etc. They are a favorite bait with anglers. Called also caddice worm, or caddis worm.
Found on
http://thinkexist.com/dictionary/meaning/caddis/

Cad'dis noun [ Middle English caddas , Scot. caddis lint, caddes a kind of woolen cloth, confer Gael. cada , cadadh , a kind of cloth, cotton, fustian, W. cadas , French cadis .] A kind of worsted lace or ribbon. ' Caddises , cambrics, lawns.'
Found on
http://www.encyclo.co.uk/webster/C/4

one of the three most important aquatic insects imitated by fly fishermen; found worldwide in all freshwater habitats; adult resembles a moth when in flight; at rest the wings are folded in a tent shape down the back; the most important aquatic state of the caddis is the pupa, which is its emerging stage (also see larva, pupa and emerger).
Found on
http://www.flyfisherpro.com/Public/Resources/GlossaryofFlyFishingTerms/inde

one of the three most important aquatic insects imitated by fly fishermen; found world wide in all freshwater habitats; adult resembles a moth when in flight; at rest the wings are folded in a tent shape down the back; the most important aquatic state of the caddis is the pupa, which is its emerging stage (also see larva, pupa and emerger).
Found on
http://www.orvis.co.uk/intro.aspx?subject=162

A common aquatic insect found in many streams and rivers. They are a favorite food of trout and other fish. They have a number of distinct stages, including an underwater pupa and an above the water surface adult. Caddis have tent shaped wings and are known in both lakes and rivers to fly down upon he water to deposit their eggs.
Found on
https://www.encyclo.co.uk/local/22491

one of the three most important aquatic insects imitated by fly fishermen; found world wide in all freshwater habitats; adult resembles a moth when in flight; at rest the wings are folded in a tent shape down the back; the most important aquatic state of the caddis is the pupa, which is its emerging stage (also see larva, pupa and emerger).
Found on
https://www.encyclo.co.uk/local/22502
No exact match found.