Leave pieces with model for division (10)
I believe the answer is:
department
'division' is the definition.
(department is a kind of division)
'leave pieces with model' is the wordplay.
'leave' becomes 'depart' (synonyms).
'pieces' becomes 'men' (man can mean a chess piece).
'with' is a charade indicator (letters next to each other).
'model' becomes 't' (Ford Model T car).
'depart'+'men'+'t'='DEPARTMENT'
'for' is the link.
(Other definitions for department that I've seen before include "Division of company" , "group of civil servants" , "Sector" , "Section of organisation" , "Moselle, perhaps" .)