Fiddle lazily and with a stiff style (7)

I believe the answer is:

rigidly

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'and with a stiff style' is the definition.
I can't tell whether this defines the answer.

'fiddle lazily' is the wordplay.
'fiddle' becomes 'rig' (I've seen this before).
'lazily' becomes 'idly' (synonyms).
'rig'+'idly'='RIGIDLY'

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(Other definitions for rigidly that I've seen before include "in unyielding grip" , "Stiffly" , "without bending" .)

I've seen this clue in The Times.

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