"Show" everyone goes to the West End for (5)
I believe the answer is:
teach
'show' is the definition.
(I've seen this before)
'everyone goes to the west end for' is the wordplay.
'everyone' becomes 'each' (I've seen this in other clues).
'goes to' is a charade indicator (letters next to each other).
'the west end' indicates taking half (the half on the left or west).
'for' becomes 'to' (eg both can mean 'in the opinion of').
'to' halved is 't'.
'each' after 't' is 'TEACH'.
(Other definitions for teach that I've seen before include "Tutor" , "Give instruction to" , "Blackbeard" , "train" , "Cheat (anag)" .)