Retailer adapted to pressure (10)
I believe the answer is:
superstore
'retailer' is the definition.
(I've seen this before)
'adapted to pressure' is the wordplay.
'adapted' indicates anagramming the letters.
'to'+'pressure'='topressure'
'topressure' with letters rearranged gives 'SUPERSTORE'.
(Other definitions for superstore that I've seen before include "Large out-of-town shop" , "Retailer" .)