Crossword Genius

Royal suggestive about knight's tendency to sin? (7)

Ross

I believe the answer is:

errancy

'to sin?' is the definition.
(thesaurus)

'royal suggestive about knight's tendency' is the wordplay.
'royal' becomes 'er' (abbreviation for Elizabeth Regina).
'suggestive' becomes 'racy' (I've seen this before).
'about' is an insertion indicator.
'knight's tendency' becomes 'n' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'racy' going around 'n' is 'rancy'.
'er'+'rancy'='ERRANCY'

I've seen this clue in The Independent.
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