A bonehead, more experienced but less cautious (6)

I believe the answer is:

bolder

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'a bonehead more experienced but less cautious' is the definition.
I can't judge whether this defines the answer.

'a bonehead more experienced' is the wordplay.
'a bonehead' becomes 'b' (head letter of 'bone').
'more experienced' becomes 'older' ('old' can be similar in meaning to 'experienced').
'b'+'older'='BOLDER'

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(Other definitions for bolder that I've seen before include "Braver or cheekier" , "Less shy" , "More impudent or daring" .)

I've seen this clue in the Evening Standard.

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