Suggest, insinuate (5)
I believe the answer is:
imply
This clue is a double definition.
'suggest' is the first definition.
(implying is a kind of suggesting)
'insinuate' is the second definition.
(I've seen this before)
(Other definitions for imply that I've seen before include "Involve - intimate" , "Express by indirect means" , "Mean" , "Insinuate, hint" , "Infer" .)