On the square (6)
I believe the answer is:
honest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">on the square</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for honest that I've seen before include "Truthful in manner" , "Uncorrupt - open - genuine" , "Fair and square" , "Honorable, true" , "Truthful and dependable" .)