Allow event generating more output from the server (3)
I believe the answer is:
let
'allow' is the definition.
(I know that allow is a more specific form of allow)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for let that I've seen before include "Award (a contract)" , "Allow or rent" , "Permit or rent" , "Allow; tennis fault" , "Allow, don't hinder" .)