Most soft and lustrous clothes of Dianne (Footloose actress) (7)

I believe the answer is:

dewiest

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'most soft and lustrous' is the definition.
I can't tell whether this defines the answer.

'clothes of dianne footloose actress' is the wordplay.
'clothes of' says to hollow out the word (remove centre letters).
'footloose actress' becomes 'wiest' (I can't explain this - if you can you should give a lot more credence to this answer).
'dianne' with its middle removed is 'de'.
'de'+'wiest'='DEWIEST'

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I've seen this clue in The Independent.

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