Aestival (7)
I believe the answer is:
summery
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">aestival</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for summery that I've seen before include "Like a spell of good weather" , "Of June, July or August (most years)" , "description of August in UK?" , "concerning part of the year" , "Hot" .)