Put to flight right away (4)
I believe the answer is:
rout
'put to flight' is the definition.
(I've seen this in another clue)
'right away' is the wordplay.
'right' becomes 'r' (common abbreviation).
'away' becomes 'out' (similar in meaning).
'r'+'out'='ROUT'
(Other definitions for rout that I've seen before include "Act like a pig" , "Runaway defeat" , "Disastrous defeat" , "Overwhelming defeat or disorderly retreat" , "Scatter on tour" .)