Where traders are quick to catch morning boat (4,6)
I believe the answer is:
flea market
'where traders' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'quick to catch morning boat' is the wordplay.
'quick' becomes 'fleet' (I've seen this before).
'to catch' indicates putting letters inside.
'morning' becomes 'am'.
'boat' becomes 'ark' (ark is a kind of boat**).
'am'+'ark'='amark'
'fleet' placed around 'amark' is 'FLEA MARKET'.
'are' is the link.
Can you help me to learn more?
(Other definitions for flea market that I've seen before include "Where second-hand sellers are" , "second-hand sale" , "Bazaar for cheap goods" , "Cheap street bazaar" , "second-hand trading area" .)