All you need for the reception? (3)
I believe the answer is:
set
'all' is the definition.
(thesaurus)
'for the reception?' is the wordplay.
I cannot really see how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is located in the answer.
The remaining letters 'se' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'you need' is the link.
Can you help me to learn more?
(Other definitions for set that I've seen before include "declined" , "Gel; group" , "Scenery for play or film" , "Badger's burrow" , "Become stiff like jelly" .)