Many entertainers (5)
I believe the answer is:
hosts
'many entertainers' is the definition.
'hosts' can be an answer for 'entertainers' (host is a kind of entertainer). I am not certain of the 'many' bit.
'many entertainers' is the wordplay.
'many' becomes 'host' (I've seen this before).
'entertainers' becomes 's' (I can't justify this - if you can you should give a lot more credence to this answer).
'host'+'s'='HOSTS'
Can you help me to learn more?
(Other definitions for hosts that I've seen before include "vast crowds" , "People who entertain" , "welcomers of guests" , "They invite and entertain guests" , "Landlords" .)