Wedding reception sight (4)
I believe the answer is:
cake
'wedding reception sight' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for cake that I've seen before include "Sweet food; become encrusted" , "You can't eat it and have it" , "Compact mass of something" , "Fancy" , "Eg, gateau" .)