Resentment, Animosity
This page is the CodyCross answer for the clue below from Tundra and Taiga, Group 1689, Puzzle 1 (Black Grouse).
Question is: Resentment, Animosity
and the answer is: ILLWILL
Word Meaning:
ILL WILL — A spiteful or vengeful attitude; a grudge; dislike.
Definitions from Wiktionary.