Top teaser puzzling, wife admitted (7)
I believe the answer is:
sweater
'top' is the definition.
(I've seen this before)
'teaser puzzling wife admitted' is the wordplay.
'puzzling' indicates an anagram.
'wife' becomes 'w'.
'admitted' is an insertion indicator.
'teaser' is an anagram of 'seater'.
'seater' placed around 'w' is 'SWEATER'.
(Other definitions for sweater that I've seen before include "Top" , "Jumper or jersey" , "Heavy jersey" , "Re waste: it's a garment" , "slave-driver" .)