Dish served in nightclub, tip for service not included (6)
I believe the answer is:
hotpot
'dish' is the definition.
(I've seen this before)
'in nightclub tip for service not included' is the wordplay.
'in nightclub' becomes 'hot' (I can't justify this - if you can you should believe this answer much more).
'tip for' says to hollow out the word (remove centre letters) (I've seen 'tips for' mean this (only the tips of the word remain)).
'service' becomes 'tip' (service charge).
'not' becomes 'o' (I've seen this in other clues).
'included' indicates putting letters inside.
'tip' with its centre taken out is 'tp'.
'tp'+'o'='tpo'
'hot' enclosing 'tpo' is 'HOTPOT'.
'served' is the link.
Can you help me to learn more?
(Other definitions for hotpot that I've seen before include "Lancashire casserole of meat and potatoes" , "(Lancashire) stew" , "course" , "Stew of meat and sliced potatoes" , "Lancashire meat dish" .)