Need to cry out in favour (4,3)

I believe the answer is:

call for

'need' is the definition.
(calling for is a kind of needing)

'cry out in favour' is the wordplay.
'cry out' becomes 'call' (I've seen this in another clue).
'in favour' becomes 'for' (as in being for a particular cause).
'call'+'for'='CALL FOR'

'to' acts as a link.

(Another definition for call for that I've seen is " Request".)

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