Rebelliousness of French chap bound for altar? (8)

I believe the answer is:

defiance

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'rebelliousness' is the definition.
(synonyms)

'of french chap bound for altar?' is the wordplay.
'of french' becomes 'de' ('of' in French).
'chap' becomes 'ian' (man's name).
'bound' is an insertion indicator.
'for altar?' becomes 'fce' (I can't justify this - if you can you should believe this answer much more).
'ian' placed into 'fce' is 'fiance'.
'de'+'fiance'='DEFIANCE'

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(Other definitions for defiance that I've seen before include "bold resistance" , "open disobedience" , "Hostile challenge" , "Disregard for authority" , "show of rebellion" .)

I've seen this clue in The Times.

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