Slight complaint Crossword Clue - Crossword Buzz That's because we want to give you crossword buffs the answers to hints you're having trouble solving. So if you've been looking for a solution to Slight complaint, we've got just the word for you to help you successfully complete your crossword. Best Answer: NIGGLE The crossword clue published 2 time/s and has 1 unique answer/s on our system.