Gain influence by flattering Wire (4)
I believe the answer is:
coax
This clue could be a double definition.
'gain influence' is the first definition.
The definition and answer can be both to do with communicating as well as being verbs in their base form.
Perhaps you can see a link between them that I can't see?
'flattering wire' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'by' acts as a link.
Can you help me to learn more?
(Other definitions for coax that I've seen before include "Carefully manipulate" , "Persuade; type of cable" , "Wheedle, cajole" , "Get round" , "sort of cable" .)