What follows victory? Gold! (9)
I believe the answer is:
successor
'what follows' is the definition.
I can't tell whether this definition defines the answer.
'victory? gold' is the wordplay.
'victory?' becomes 'success' (I've seen this in another clue).
'gold' becomes 'or' ('or' is the heraldic name for gold).
'success'+'or'='SUCCESSOR'
Can you help me to learn more?
(Other definitions for successor that I've seen before include "for one of the following people" , "New leader" , "Person who follows next in order" , "One follows next in order" , "Person taking over from another" .)
