Mass of locusts or hornets (5)
I believe the answer is:
swarm
(Other definitions for swarm that I've seen before include "Host" , "New colonists" , "Climb; cluster of bees" , "Plague of insects" , "Dense group (of insects)" .)
I believe the answer is:
swarm
(Other definitions for swarm that I've seen before include "Host" , "New colonists" , "Climb; cluster of bees" , "Plague of insects" , "Dense group (of insects)" .)