Quebec's largest city (8)
I believe the answer is:
montreal
'quebec's largest city' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for montreal that I've seen before include "Let Norma go to the city" , "9/11 [OLYMPIC VENUE]" , "Neal and Mort are gone to Canada" , "Largest city in Qu?bec" , "Canadian location?" .)