Time to carry blow (5)

I believe the answer is:

thump

'blow' is the definition.
(thump is a kind of blow)

'time to carry' is the wordplay.
'time' becomes 't'.
'to carry' becomes 'hump' (I've seen this before).
't'+'hump'='THUMP'

(Other definitions for thump that I've seen before include "(Sound of) heavy blow" , "Common feature of Boxing" , "Say" , "Hit - defeat heavily" , "Dull heavy blow" .)

I've seen this clue in The Independent.

Want a hint initially instead of a full solution? Install my app