Don’t allow to get a second award (3)
I believe the answer is:
bar
'don't allow' is the definition.
'get a second award' is the wordplay.
'get' is a charade indicator (letters next to each other).
'a second' becomes 'b' (B can mean second eg B-side).
'award' becomes 'ar' (I can't justify this - if you can you should believe this answer much more).
'b'+'ar' is 'BAR'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for bar that I've seen before include "Exclude < > lawyers" , "Local" , "Pub; block (access)" , "Save; pub" , "Pub; restriction" .)