Highest Alpine peak (4,5)
I believe the answer is:
mont blanc
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">highest alpine peak</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 mont blanc that I've seen before include "Highest mountain in the Alps" , "Highest mountain in the?Alps" , "peak form" , "Mountain in 6" , "French Alps peak" .)