Food shortage at several banks (4)
I believe the answer is:
eats
'food' is the definition.
(eats can mean food)
'shortage at several banks' is the wordplay.
'banks' indicates a hidden word (the clue contains or banks the answer).
'EATS' can be found hidden inside 'shortage at several'.
(Other definitions for eats that I've seen before include "Victuals" , "Grazes perhaps" , "worries" , "Consumes with teas" , "Takes nourishment" .)