Alter to fit (5)
I believe the answer is:
adapt
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">alter to fit</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for adapt that I've seen before include "Tailor" , "Fashion" , "Alter, amend" , "Become adjusted to new conditions" , "Become adjusted to new circumstances" .)