Personal belief (7)
I believe the answer is:
opinion
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">personal belief</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for opinion that I've seen before include "A view held as probable - well, that's mine" , "Unproven belief" , "Personal belief or judgment" , "thinking" , "Belief or conviction" .)