Crossword Genius

Showed bad spirit having started badly (12)

Ross

I believe the answer is:

demonstrated

'showed' is the definition.
(demonstrating is a kind of showing)

'bad spirit having started badly' is the wordplay.
'bad spirit' becomes 'demon' (I've seen this before).
'having' is a charade indicator (letters next to each other).
'badly' is an anagram indicator (letters in the wrong order).
'started' anagrammed gives 'strated'.
'demon'+'strated'='DEMONSTRATED'

(Other definitions for demonstrated that I've seen before include "shown up" , "made public protest" .)

I've seen this clue in The Globe and Mail.
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