Perplexing male acting a lie? That's out of order (11)

I believe the answer is:

enigmatical

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'perplexing' is the definition.
Both the definition and answer are adjectives. Perhaps there's an association between them I don't understand?

'male acting a lie? that's out of order' is the wordplay.
'male' becomes 'm' (common abbreviation).
'that's out of order' indicates anagramming the letters.
'm'+'acting'+'a'+'lie'='mactingalie'
'mactingalie' with letters rearranged gives 'ENIGMATICAL'.

Can you help me to learn more?

(Other definitions for enigmatical that I've seen before include "about puzzles" , "Mysterious" , "Puzzling" .)

I've seen this clue in The Times.

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