Affectedly self-important (7)
I believe the answer is:
pompous
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">affectedly self-important</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 pompous that I've seen before include "Grandiloquent" , "Affectedly self-important" , "Vain" , "Bombastic" , "Grandly self-important" .)