Flatfishes (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">flatfishes</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for dabs that I've seen before include "Fingerprints (colloq.)" , "Fingerprints (slang)" , "they give evidence to police" , "Fish < experts" , "'Pats at, with a cloth, say (4)'" .)
(Other definitions for rays that I've seen before include "Columns of light or heat" , "Sunbeams" , "They swim" , "shafts" , "Beams - fish" .)