Scattering (9)
I believe the answer is:
dispersal
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">scattering</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 dispersal that I've seen before include "(Of smoke) thinning out and disappearance" , "Natural spread of seed" , "Scattering" , "Distribution over a wide area" , "broadcast" .)