Photography pioneer (8)
I believe the answer is:
daguerre
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">photography pioneer</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 daguerre that I've seen before include "Inventor of an early photographic process" , "Pioneer photographer" .)