Nothing more than (4)
(Other definitions for mere that I've seen before include "Paltry" , "Nothing more than what is specified (4)" , "Just an English lake" , "Lake (and nothing else?)" , "Simply, nothing more than" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nothing more than</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 merely that I've seen before include "'Only, and nothing more (6)'" , "Simply - only" , "Just one" .)