Touring India freely, Bill's worried about a drive (9)

I believe the answer is:

libidinal

'about a drive' is the definition.
(relating to the libido, one's sex drive)

'touring india freely bill's worried' is the wordplay.
'touring' is an insertion indicator (touring can mean going round).
'freely' indicates anagramming the letters.
'worried' indicates an anagram.
'india' is an anagram of 'idina'.
'bill' with letters rearranged gives 'libl'.
'idina' put into 'libl' is 'LIBIDINAL'.

I've seen this clue in The Guardian.

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