Pour out, making the enemy retreat (4)
I believe the answer is:
emit
'pour out' is the definition.
'the enemy retreat' is the wordplay.
'the enemy' becomes 'time' (the enemy when speaking figuratively).
'retreat' shows that the letters should be reversed in order.
'time' back-to-front is 'EMIT'.
'making' is the link.
(Other definitions for emit that I've seen before include "'Give off, odour say (4)'" , "Give off or discharge" , "Throw out" , "Release" , "Broadcast" .)