Remove IV etc. in operation (5)
I believe the answer is:
evict
'remove' is the definition.
(I've seen this before)
'iv etc in operation' is the wordplay.
'in operation' indicates anagramming the letters (I've seen this in other clues).
'iv'+'etc'='ivetc'
'ivetc' anagrammed gives 'EVICT'.
(Other definitions for evict that I've seen before include "Expel (tenant)" , "Turf out" , "Cast out" , "Remove form house for non-payment" , "Expel (from property)" .)