Source of growth (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">source of growth</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for seedbed that I've seen before include "growing area?" , "Where plants are germinated" , "Plot where young plants develop" .)
(Other definitions for seed that I've seen before include "Pip; origin, beginning" , "One of the outstanding players in a tournament" , "Local escorted" , "An outstanding player in a tournament" , "one very much fancied" .)