Identifying features with millions in exaltation (9)

I believe the answer is:

landmarks

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'identifying features' is the definition.
'landmarks' can be an answer for 'features' (I've seen this before). I'm unsure of the 'identifying' bit.

'with millions in exaltation' is the wordplay.
'with' becomes 'and'.
'millions' becomes 'm' (abbreviation).
'in' indicates putting letters inside.
'exaltation' becomes 'larks' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'and'+'m'='andm'
'andm' inserted within 'larks' is 'LANDMARKS'.

Can you help me to learn more?

(Other definitions for landmarks that I've seen before include "historic events" , "Prominent features" .)

I've seen this clue in The Independent.

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