Sole import produced in New York, say (10)
I believe the answer is:
metropolis
'new york say' is the definition.
(new york is a kind of metropolis)
'sole import produced' is the wordplay.
'produced' is an anagram indicator.
'sole'+'import'='soleimport'
'soleimport' with letters rearranged gives 'METROPOLIS'.
'in' acts as a link.
(Other definitions for metropolis that I've seen before include "Very large city" , "chief centre" , "Main city" , "Major city of region" , "See" .)