Covers not featuring model’s first poses (4)
I believe the answer is:
asks
'poses' is the definition.
(as in posing or asking a question)
'covers not featuring model's first' is the wordplay.
'covers' becomes 'masks' (masking is a kind of covering).
'not featuring' suggests deleting specific letters.
'model's first' becomes 'm' (1st letter of 'model').
'masks' with 'm' removed is 'ASKS'.
(Other definitions for asks that I've seen before include "Puts a question" , "Solicits" , "Poses a question" , "Enquires; requests" , "Puts a query" .)