Cut and dried grass (3)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cut and dried grass</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 hay that I've seen before include "Dried mown grass" , "Forage" , "Make . . . while the sun shines" , "Wye book town" , "basic bedding" .)