Battlefield object making blast, primarily (4)
I believe the answer is:
bomb
'battlefield object making blast primarily' is the definition.
I can't judge whether this defines the answer.
'battlefield object making blast primarily' is the wordplay.
'primarily' suggests taking the first letters.
The initial letters of 'battlefield object making blast' is 'BOMB'.
Can you help me to learn more?
(Other definitions for bomb that I've seen before include "One going off" , "Exploding weapon" , "move quickly" , "(Of a theatre production) fail badly" , "Mine" .)