Musical group embraces new age, advertising online (6,2)

I believe the answer is:

banner ad

'advertising online' is the definition.
(type of advert displayed on websites)

'musical group embraces new age' is the wordplay.
'musical group' becomes 'band' (band is a kind of musical group).
'embraces' is an insertion indicator.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'age' becomes 'era' (I've seen this before).
'n'+'era'='nera'
'band' placed around 'nera' is 'BANNER AD'.

I've seen this clue in The Times.

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