Knitted diamond pattern (6)
I believe the answer is:
argyle
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">knitted diamond pattern</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for argyle that I've seen before include "Coloured diamond pattern on knitted garments" , "Pattern on knitwear" , "Old Scottish county; part name of a W Country football team" , "Lozenge pattern (socks)" , "Of diamond - patterned material" .)