Of the highest quality (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">of the highest quality</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 finest that I've seen before include "Most splendid" , "A1" , "Most delicate or topmost" , "Superior in quality" , "Of the highest quality" .)
(Other definitions for gilt-edged that I've seen before include "Of investments, considered to very safe" , "(Of investments) regarded as extremely reliable" , "Of high quality and reliable" , "Like reliable stocks or securities" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">of the highest quality</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 top-notch that I've seen before include "Superb" , "Grade 1" , "Excellent (informal)" , "Wonderful" , "Of the highest quality" .)