Heard assessment of entertainment (5)
I believe the answer is:
revue
'entertainment' is the definition.
(I've seen this before)
'heard assessment' is the wordplay.
'heard' shows a homophone (sound like).
'assessment' becomes 'review' (review is a kind of assessment).
'review' is a homophone of 'REVUE'.
'of' is the link.
(Other definitions for revue that I've seen before include "(Of butter) tasting off" , "Entertainment with sketches, songs etc" , "Kind of show with sketches and songs" , "Stage entertainment with sketches, songs and dance" , "Form of light entertainment" .)