European chain (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">european chain</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for alps that I've seen before include "Slap (anag.)" , "Swiss mountains" , "European mountain chain" , "With pals in great mountains" , "Mountain pastures" .)