Crossword Genius

Highly productive (6)

Ross

I believe the answer is:

fecund

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">highly productive</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 fecund that I've seen before include "Highly fertile" , "Prolific, fertile" , "Highly productive" , "Fertile or productive" , "Producing many offspring or ideas" .)

I've seen this clue in The Washington Post and The Sunday Times.
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