Tenancy agreement (5)
I believe the answer is:
lease
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tenancy agreement</span>' is the definition.<br/ ><span class="explanation-format__explanation">(agreement for leasing a property)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lease that I've seen before include "Contract for, say, use of building" , "Let (property)" , "Contract of tenure" , "Let; rent" , "Charter" .)