Look for a very quiet listener (6)
I believe the answer is:
appear
'look' is the definition.
(synonyms)
'a very quiet listener' is the wordplay.
'very quiet' becomes 'pp' (musical abbreviation for pianissimo).
'listener' becomes 'ear' (body part which hears or listens).
'a'+'pp'+'ear'='APPEAR'
'for' is the link.
(Other definitions for appear that I've seen before include "hove in sight" , "Seem or materialise" , "Turn up" , "Make an entrance as ghost may" , "Look - materialise" .)