Not so good (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not so good</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for worse that I've seen before include "More severe; less well" , "More awful or unwell" , "Less favourable" , "Less good" , "Of poorer quality" .)
(Other definitions for meh that I've seen before include "am I bovvered?" , "expression of indifference" , "Not much cop" , "Unexciting (modern slang)" , "Who cares" .)