Slacks, perhaps? It's the opposite of kind taking in employer (8)
I believe the answer is:
trousers
'slacks perhaps?' is the definition.
(slacks is a kind of trousers)
'the opposite of kind taking in employer' is the wordplay.
'the opposite of' says the letters should be written backwards.
'kind' becomes 'sort' ('sort' can be a synonym of 'kind'**).
'taking in' is an insertion indicator.
'employer' becomes 'user' (I've seen this before).
'sort' reversed gives 'tros'.
'tros' enclosing 'user' is 'TROUSERS'.
'it's' acts as a link.
(Other definitions for trousers that I've seen before include "pockets" , "Pants" , "Nether garments now worn by either sex" , "flies here" , "Longs" .)