Grandee exploding bomb that's handy (7)
I believe the answer is:
grenade
'bomb that's handy' is the definition.
I can't judge whether this definition defines the answer.
'grandee exploding' is the wordplay.
'exploding' is an anagram indicator.
'grandee' is an anagram of 'GRENADE'.
Can you help me to learn more?
(Other definitions for grenade that I've seen before include "Small explosive device" , "Bomb with a pin" , "Small bomb thrown by hand" , "Small explosive that is thrown" , "Small hand-bomb" .)