Mope about recycled air in shops (7)
I believe the answer is:
emporia
'shops' is the definition.
(I've seen this before)
'mope about recycled air' is the wordplay.
'about' is an anagram indicator.
'recycled' indicates an anagram.
'mope' anagrammed gives 'empo'.
'air' anagrammed gives 'ria'.
'empo'+'ria'='EMPORIA'
'in' acts as a link.
(Other definitions for emporia that I've seen before include "sales outlets" , "big stores" , "Large retail outlets" , "I'm a rope (anag)" , "Large stores" .)