Suggested by a low fellow (6)
I believe the answer is:
mooted
'suggested' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Maybe you can see an association between them that I don't see?
'by a low fellow' is the wordplay.
'by' is a charade indicator (letters next to each other).
'a low' becomes 'moo' (both can mean to make the noise of a cow).
'fellow' becomes 'ted' (man's name).
'moo' next to 'ted' is 'MOOTED'.
Can you help me to learn more?
(Other definitions for mooted that I've seen before include "'Debated, considered (6)'" , "Raised matter for discussion" , "Proposed for discussion" , "Raised question for discussion" .)