Get ready for attack (3,5)
I believe the answer is:
set about
This clue might be a double definition.
'get' is the first definition.
(I know that get can be written as set about)
'ready for attack' is the second definition.
'set about' can be an answer for 'attack' (I've seen this before). I am not certain of the 'ready for' bit.
Can you help me to learn more?
(Other definitions for set about that I've seen before include "Start to do something with determination" , "Begin - attack" , "Get cracking" , "Embark upon" .)