
1) Barker 2) Distressed dog 3) Many a toy 4) Noisy pooch 5) One making shrill barks 6) Puppy, often 7) Shrill barker 8) Yassistant
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https://www.crosswordclues.com/clue/yelper

• (n.) The tattler. • (n.) The avocet; -- so called from its sharp, shrill cry. • (n.) An animal that yelps, or makes a yelping noise.
Found on
http://thinkexist.com/dictionary/meaning/yelper/
Yelp'er noun An animal that yelps, or makes a yelping noise. Specifically:
(Zoology) (a) The avocet; -- so called from its sharp, shrill cry. [ Prov. Eng.]
(b) The tattler. [ Local, U. S.]
Found on
http://www.encyclo.co.uk/webster/Y/4
No exact match found.