Part of a crossword (4)
I believe the answer is:
grid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">part of a crossword</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 grid that I've seen before include "Rectangular lattice" , "Rectangular network" , "Pattern of crossing lines" , "Network of crossing parallel lines" , "Crossword pattern" .)