Lawman Wyatt (4)
I believe the answer is:
earp
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lawman wyatt</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 earp that I've seen before include "Wyatt - - (US marshal)" , "See 4 Across" , "Wyatt --, Tombstone lawman" , "Wyatt - (O.K. Corral)" , "Wyatt --, US law officer" .)