Have Suspicions, Feel Doubtful About a Situation

This page is the CodyCross answer for the clue below from Treasure Island, Group 1024, Puzzle 4 (Me Hearties).

Question is: Have Suspicions, Feel Doubtful About a Situation

and the answer is: SMELLARAT

Word Meaning:

SMELL A RAT — (idiomatic) To sense something suspicious.

Definitions from Wiktionary.