Long grass on a golf course (5)
I believe the answer is:
rough
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">long grass on a golf course</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 rough that I've seen before include "grating > below par" , "that driver tries to avoid" , "Sketchy" , "Rasping" , "Hard - coarse - inexact" .)