Many bees fighting, contained by magistrate (5)
I believe the answer is:
swarm
'many' is the definition.
(thesaurus)
'bees fighting contained by magistrate' is the wordplay.
I cannot really understand how this works, but
'fighting' could be 'war' and 'war' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for swarm that I've seen before include "New colonists" , "Mob" , "Hive" , "Move in large numbers like locusts" , "Horde" .)