Force to retreat right away from home (4)
I believe the answer is:
rout
'force to retreat' is the definition.
(rout can mean to beat in battle)
'right away from home' is the wordplay.
'right' becomes 'r' (common abbreviation).
'away from home' becomes 'out' (synonyms).
'r'+'out'='ROUT'
(Other definitions for rout that I've seen before include "Act like a pig" , "Send fleeing" , "Runaway defeat" , "Total defeat in battle" , "Overwhelming victory" .)