Smart head, one in hiding giving nothing away? (10)

I believe the answer is:

stinginess

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'nothing away?' is the definition.
I can't judge whether this definition defines the answer.

'smart head one in hiding' is the wordplay.
'smart' becomes 'sting' (both can mean to burn or hurt).
'head' becomes 'ness' (ness is a headland).
'one' becomes 'I' (Roman numeral).
'in hiding' is an insertion indicator (some letters hide inside others).
'sting'+'ness'='stingness'
'stingness' enclosing 'i' is 'STINGINESS'.

'giving' acts as a link.

Can you help me to learn more?

(Other definitions for stinginess that I've seen before include "Lack of generosity" , "Parsimony" .)

I've seen this clue in The Times.

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