I would be heard and looked at (4)
I believe the answer is:
eyed
'looked at' is the definition.
(I've seen this in another clue)
'i would be heard' is the wordplay.
'i would' becomes 'I'd'.
'be heard' indicates a 'sounds like' (homophone) clue.
'id' sounds like 'EYED'.
'and' is the link.
(Other definitions for eyed that I've seen before include "examined" , "Viewed" , "Watched warily" , "Watched with interest" , "Looked at, warily perhaps" .)