Looker seen at Suffolk town dance (7)
I believe the answer is:
eyeball
'looker' is the definition.
(part of the body which looks or sees)
'at suffolk town dance' is the wordplay.
'at' is a charade indicator (letters next to each other).
'suffolk town' becomes 'Eye' (town in Suffolk).
'dance' becomes 'ball' (ball is a kind of dance).
'eye'+'ball' is 'EYEBALL'.
'seen' acts as a link.
(Other definitions for eyeball that I've seen before include "something in orbit" , "Optic organ" , "Closely examine" , "not exact" , "Watch" .)