Swarms (6)
'swarms' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for crowds that I've seen before include "Presses" , "Hordes" , "Hosts" , "huge turnout?" , "Large gatherings of people" .)
'swarms' is the definition.
('teem' can be a synonym of 'swarm')
This is the entire clue.
(Other definitions for teems that I've seen before include "Rains heavily" , "Abounds, swarms" , "Buckets down" , "Pours down" .)