Doubting Thomas (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">doubting thomas</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sceptic that I've seen before include "He's hard to convince" , "One who doubts accepted opinions" , "One is inclined to doubt accepted opinions" , "Greek philosopher" , "One questioning accepted opinions" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">doubting thomas</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>