Time to raise the net (3)
I believe the answer is:
ten
'time' is the definition.
(I've seen this before)
'raise the net' is the wordplay.
'raise' says the letters should be written in reverse.
'net' back-to-front is 'TEN'.
'to' acts as a link.
(Other definitions for ten that I've seen before include "How many" , "X-WORD" , "No of sides of a decagon" , "Five times two" , "honour" .)