Insinuation (8)
I believe the answer is:
innuendo
'insinuation' is the definition.
(I know that insinuation can be written as innuendo)
This is the entire clue.
(Other definitions for innuendo that I've seen before include "suggestive remarks" , "Malicious insinuation" , "Subtle disparagement" , "Indirect remark" , "End union with insinuation" .)