Cry with pain (4)

I believe the answer is:

wail

'cry' is the definition.
(wailing is a kind of crying)

'with pain' is the wordplay.
'with' becomes 'w' (abbreviation).
'pain' becomes 'ail' ('ail' can be a synonym of 'pain').
'w'+'ail'='WAIL'

(Other definitions for wail that I've seen before include "Utter a long sad cry" , "Lament noisily" , "Cry piteously" , "Sorrowful cry" , "Lament loudly" .)

I've seen this clue in The Times and The Telegraph.

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