Perfectly fit and well (2,5,2,4)
I think it could be either:
as right as rain
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">perfectly fit and well</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 as right as rain that I've seen before include "Perfectly OK" , "Sound" , "quite OK" , "Perfectly fit and well" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">perfectly fit and well</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 right as rain that I've seen before include "Perfectly fit and well" , "Very fine" , "perfectly in order" , "In perfect order!" .)