Provides excess nosh. Eats after six deliveries! (9)
I believe the answer is:
overfeeds
'provides excess nosh' is the definition.
I can't tell whether this definition defines the answer.
'eats after six deliveries' is the wordplay.
'eats' becomes 'feeds' ('feed' can be a synonym of 'eat').
'after' is a charade indicator (letters next to each other).
'six deliveries' becomes 'over' (a cricket over consists of six deliveries).
'feeds' put after 'over' is 'OVERFEEDS'.
Can you help me to learn more?
(Another definition for overfeeds that I've seen is " gives too much for stomach to digest".)