Coward takes advantage of work (7)

I believe the answer is:

milksop

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'coward' is the definition.
(milksop is a kind of coward)

'advantage of work' is the wordplay.
'advantage of' becomes 'milks' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'work' becomes 'op' (abbreviation for opus).
'milks'+'op'='MILKSOP'

'takes' is the link.

Can you help me to learn more?

(Other definitions for milksop that I've seen before include "Sissy" , "Cissy, fond of a pinta?" , "Feeble and effete person" , "Feeble youth" , "soft fellow" .)

I've seen this clue in The Telegraph.

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