We miss commuting in, poorly made, tight fitting garment (8,7)
I believe the answer is:
swimming costume
'garment' is the definition.
(swimming costume is a kind of garment)
'we miss commuting in poorly made tight fitting' is the wordplay.
'we miss commuting' can be anagrammed to 'SWIMMING COSTUME'.
Though, I am not clear how this is indicated.
Can you help me to learn more?
(Other definitions for swimming costume that I've seen before include "going on in baths?" , "Item of beachwear" , "bathers" , "skimpy garment" .)