Answer:

renter

Answer	Crossword Clue
RENTER	Apartment dweller
RENTER	Apartment dweller, usually
RENTER	Tenant

RENTER	Landlord's need
RENTER	Lease signer
RENTER	Avis patron
RENTER	Flat denizen
RENTER	Occupant, perhaps
RENTER	Summer resident, often
RENTER	Summer resident, perhaps
RENTER	Apartment inhabitant, usually

RENTER	Lessee
RENTER	One paying a flat rate?
RENTER	Flat figure
RENTER	Security-deposit payer
RENTER	Flat letter
RENTER	Apartment dweller, perhaps
RENTER	Tux wearer, often
RENTER	Seasonal resident, often

RENTER	Thrifty customer
RENTER	Security provider
RENTER	One paying a flat fee
RENTER	Lessee.
RENTER	Landlord.
RENTER	Man interested in a frozen item.
RENTER	Tenant.
RENTER	Apartment dweller.

RENTER	Boxholder
RENTER	His payment is sometimes controlled
RENTER	One in a flat
RENTER	Flat dweller
RENTER	Flat person
RENTER	One who deals with letters
RENTER	Letter's need
RENTER	Thrifty customer?

RENTER	Thrifty customer, e.g.
RENTER	One in town for the summer, say
RENTER	Landlord's supporter
RENTER	Blockbuster patron
RENTER	Flat occupant