British planes on time in southeast make low attack (6)
I believe the answer is:
strafe
'low attack' is the definition.
(I've seen this before)
'british planes on time in southeast' is the wordplay.
'british planes' becomes 'raf' (I am not sure about this - if you are sure you should believe this answer much more).
'on' is an insertion indicator.
'time' becomes 't'.
'in' is an insertion indicator.
'southeast' becomes 'se' ('SE' can be a synonym of 'southeast').
't' inserted into 'se' is 'ste'.
'raf' inserted within 'ste' is 'STRAFE'.
'make' is the link.
Can you help me to learn more?
(Other definitions for strafe that I've seen before include "Attack with machine-gun fire" , "Spray with gunfire" , "low attack" , "Rake with machine-gun fire" , "attack with flying arms" .)