Heard and heeded (8)
I believe the answer is:
listened
'heard and heeded' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for listened that I've seen before include "Paid aural attention, having enlisted" , "Paid attention to sound" , "Heard and paid heed" , "Having taken note" , "Lent an ear" .)