My brig's wrecked in Humber port (7)
I believe the answer is:
grimsby
'humber port' is the definition.
The definition suggests a singular noun which matches the answer.
'my brig's wrecked' is the wordplay.
'wrecked' indicates anagramming the letters.
'my'+'brigs'='mybrigs'
'mybrigs' is an anagram of 'GRIMSBY'.
'in' is the link.
Can you help me to learn more?
(Other definitions for grimsby that I've seen before include "Seaport on the Humber estuary" , "Humberside fishing port" , "Lincs port" , "Lincolnshire port" , "My bowstring (anag)" .)