Royal family leads, as if in armour? (10)

I believe the answer is:

clankingly

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'if in armour?' is the definition.
I can't judge whether this definition defines the answer.

'royal family leads' is the wordplay.
'royal' becomes 'kingly'.
'family' becomes 'clan' (clan can mean a large family).
'leads' is a charade indicator (letters next to each other) (some letters go in front of others).
'kingly' after 'clan' is 'CLANKINGLY'.

'as' acts as a link.

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I've seen this clue in The Times.

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