Treat lavishly (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">treat lavishly</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 fete that I've seen before include "Holiday festival" , "Celebrate; village fair" , "Outdoor charity event" , "Festival event" , "Village festivity" .)