Rent large facility (5)
I believe the answer is:
lease
'rent' is the definition.
(thesaurus)
'large facility' is the wordplay.
'large' becomes 'l'.
'facility' becomes 'ease' (I've seen this before).
'l'+'ease'='LEASE'
(Other definitions for lease that I've seen before include "Let for money" , "Contract for use of land or building" , "Hire out, rent" , "Let (property)" , "Charter" .)