Our quintet reassembled for a pressure device (10)
I believe the answer is:
tourniquet
'a pressure device' is the definition.
'tourniquet' can be an answer for 'device' (I have seen 'Medical device' mean 'tourniquet' so perhaps 'device' could also mean 'tourniquet'). I am unsure of the 'a pressure' bit.
'our quintet reassembled' is the wordplay.
'reassembled' indicates anagramming the letters.
'our'+'quintet'='ourquintet'
'ourquintet' anagrammed gives 'TOURNIQUET'.
'for' is the link.
Can you help me to learn more?
(Other definitions for tourniquet that I've seen before include "Medical device" , "it'll stop bleeding" , "Blood flow stopper" , "Device for stopping blood flow" , "bleeding controller!" .)