Accrue interest (4)
I believe the answer is:
earn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">accrue interest</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for earn that I've seen before include "Make - merit" , "Acquire money by labour" , "long gone" , "Pull in" , "Acquire by one's efforts" .)