22 across
Sense
of
outrageous
theatre
initially
dressing
Australian
in
drag
(10)
Sense of outrageous theatre initially dressing Australian in drag (10)
hints
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checks
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hints
The definition is at the end of the clue.
How the clue works
The definition is drag, as in something tediously boring. Take an anagram (signalled by "outrageous") of "sense of" plus T (the initial letter of "theatre"), giving the letters SNOEFEST, then wrap them around OZ ("Australian") — the "dressing" indicator — to build SN-OZ-OEFEST, which reads SNOOZEFEST. And no, there's no room for Dame Edna in there!