Steal from credit card, and request gear for heist (3,4)
I believe the answer is:
ski mask
'gear for heist' is the definition.
(eg a ski mask might be worn during a bank heist)
'steal from credit card and request' is the wordplay.
'steal from credit card' becomes 'skim' (skim can mean to copy a credit card).
'and' says to put letters next to each other.
'request' becomes 'ask' (to ask is to request something).
'skim'+'ask'='SKI MASK'
(Other definitions for ski mask that I've seen before include "protective winter gear" , "bank robber's protection" .)