In great numbers (6)
I believe the answer is:
galore
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">in great numbers</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for galore that I've seen before include "'Whisky ------!', classic Ealing comedy of 1949" , "Existing in great numbers" , "abundantly" , "Lots of" , "Aplenty" .)