Shorten (text) (7)
I believe the answer is:
abridge
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shorten text</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for abridge that I've seen before include "Abbreviate, shorten" , "Shorten written work" , "Make a precis of" , "Tighten up" , "Edit down" .)