Suggestion of chintz (4)
I believe the answer is:
hint
'suggestion' is the definition.
(I know that suggestion can be written as hint)
'of chintz' is the wordplay.
'of' indicates a hidden word.
'HINT' is hidden within 'chintz'.
(Other definitions for hint that I've seen before include "Indirect clue" , "'Slight indication, indirect suggestion (4)'" , "suspicion" , "Tip - small amount" , "Small trace; clue" .)