Send new timer (5)
I believe the answer is:
remit
'send' is the definition.
(I've seen this before)
'new timer' is the wordplay.
'new' indicates an anagram.
'timer' is an anagram of 'REMIT'.
(Other definitions for remit that I've seen before include "Assigned task or area" , "Shorten sentence or send money" , "Abate; send (money)" , "Pay for timer" , "Scope - send money" .)