Intense enthusiasm of some pushy people (4)
I believe the answer is:
hype
'intense enthusiasm' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'some pushy people' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'HYPE' can be found hidden inside 'pushy people'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for hype that I've seen before include "Huge publicity" , "injection" , "Plug" , "used by pusher?" , "racket" .)