A Grump, a Whiner, or a Kitten Sucking a Lemon

This page is the CodyCross answer for the clue below from La Bella Roma, Group 415, Puzzle 2 (Passeggiata).

Question is: A Grump, a Whiner, or a Kitten Sucking a Lemon

and the answer is: SOURPUSS

Word Meaning:

SOURPUSS — (informal) A person who is habitually gloomy, sullen or miserable; a grouch; a scowling person.

Definitions from Wiktionary.