Popular viewpoint for new pupils perhaps (6)
I believe the answer is:
intake
'new pupils perhaps' is the definition.
(new intake at a school)
'popular viewpoint' is the wordplay.
'popular' becomes 'in' ('in' can mean trendy).
'viewpoint' becomes 'take' (take can mean a viewpoint or opinion).
'in'+'take'='INTAKE'
'for' is the link.
(Other definitions for intake that I've seen before include "Things or quantity imported" , "new kids?" , "Place where gas or water enters" , "Fresh pupils" , "Those joining (for the first time)" .)