Model on holiday has to leave hurriedly (4,3)
I believe the answer is:
make off
'to leave hurriedly' is the definition.
(I've seen this before)
'model on holiday' is the wordplay.
'model' becomes 'make' (eg a make or model of car).
'on holiday' becomes 'off' (I've seen this in another clue).
'make'+'off'='MAKE OFF'
'has' acts as a link.
(Other definitions for make off that I've seen before include "Leave hurriedly" , "hurry away" , "run away" .)