Seafood primarily put in stew for popular nightclub (7)
I believe the answer is:
hotspot
'popular nightclub' is the definition.
(ie a hotspot for night life)
'seafood primarily put in stew' is the wordplay.
'seafood primarily' becomes 's' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'put in' indicates putting letters inside.
'stew' becomes 'hotpot' (I've seen this before).
's' placed into 'hotpot' is 'HOTSPOT'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for hotspot that I've seen before include "busy area" , "Nightclub" .)