Philosopher known for his razor (5)
I believe the answer is:
occam
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">philosopher known for his razor</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 occam that I've seen before include "___ 's razor - computer programming language" , "Oxford scholar" , "Man with razor" , "English philosopher, William (with a Razor!), d. 1349" , "medieval philosopher" .)