
1) Bartending equipment 2) Stick for stirring
Found on
https://www.crosswordclues.com/clue/muddler

A muddler is a bartender`s tool, used like a pestle to mash—or muddle—fruits, herbs, and/or spices in the bottom of a glass to release their flavor. Cocktails that require the use of a muddler include: ...
Found on
http://en.wikipedia.org/wiki/Muddler

• (n.) One who, or that which, muddles.
Found on
http://thinkexist.com/dictionary/meaning/muddler/
Mud'dler noun One who, or that which, muddles.
Found on
http://www.encyclo.co.uk/webster/M/111

Where a cocktail requires some of the ingredients to be muddled, a muddler is used; a long tool similar to a small rolling pin with a dimpled or textured end. Ingredients, fruits or herbs are crushed or ‘muddled’ in the bottom of a glass or vessel to release flavours and aromas.
Found on
https://thegincooperative.com/the-complete-glossary-of-scottish-gin/

normally a deer hair headed fly.
Found on
https://www.encyclo.co.uk/local/22502

a swizzle stick with an enlarged tip for stirring drinks, crushing fruit or sugar, etc. · a person who muddles or muddles through. · a miller's thumb.
Found on
https://www.infoplease.com/dictionary/muddler
No exact match found.