Grub money (5)

I believe the answer is:

bread

I believe this clue is a double definition.

'grub' is the first definition.
(thesaurus)

'money' is the second definition.
(bread is a kind of money)

(Other definitions for bread that I've seen before include "Eg, pumpernickel" , "Dosh (slang)" , "Food; money (informal)" , "Loaf; money" , "Baker's product" .)

I've seen this clue in the Evening Standard.

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