Father on time to meet party men in entrance to house? (5,4)
I believe the answer is:
front door
'entrance to house?' is the definition.
'father on time to meet party men' is the wordplay.
'father' becomes 'fr'.
'time' becomes 't' (abbreviation).
'to' means one lot of letters go next to another.
'meet party' becomes 'do' (do is a kind of party. I am not sure about the 'meet' bit.).
'men' becomes 'or' (military abbreviation for Other Ranks).
'fr'+'on'+'t'+'do'+'or'='FRONT DOOR'
'in' is the link.
(Other definitions for front door that I've seen before include "main entrance" , "Exit" , "Formal entrance to house" .)