Pressurised spray (7)
I believe the answer is:
aerosol
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pressurised spray</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 aerosol that I've seen before include "can, probably" , "Spray creator" , "O so real (anag.)" , "Pressurized container" , "fog?" .)