Underworld girls in sacks (9)

I believe the answer is:

dismisses

'sacks' is the definition.
('dismiss' can be a synonym of 'sack')

'underworld girls' is the wordplay.
'underworld' becomes 'dis' (I've seen this before).
'girls' becomes 'misses' ('miss' can be a synonym of 'girl').
'dis'+'misses'='DISMISSES'

'in' is the link.

(Another definition for dismisses that I've seen is " Sends away".)

I've seen this clue in The Times.

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