8 down
ELO
apparently
created
a
bit
of
atmosphere
(8,5)
ELO apparently created a bit of atmosphere (8,5)
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0
hints
The definition is at the end of the clue.
How the clue works
Look at a bit of atmosphere — that's your definition, since the Appleton layer is a region of the ionosphere. The wordplay has you taking the letters of ELO apparently and rearranging them ("created") to get your answer.