Trouble about entering boring item on advanced CV (7)

I believe the answer is:

biodata

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'cv' is the definition.
(biodata can mean someone's curriculum vitae)

'trouble about entering boring item on advanced' is the wordplay.
'trouble' becomes 'ado' (both can mean bother or commotion).
'about' says the letters should be written backwards.
'entering' is an insertion indicator.
'boring item' becomes 'bit' (I've seen this in another clue).
'on advanced' becomes 'a' (abbreviation. I am not sure about the 'on' bit.).
'ado' reversed gives 'oda'.
'oda' inserted within 'bit' is 'biodat'.
'biodat'+'a'='BIODATA'

Can you help me to learn more?

(Other definitions for biodata that I've seen before include "Biographical details" , "Facts of life" .)

I've seen this clue in The Independent.

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