Place to fly from New Delhi over another city (9)

I believe the answer is:

helidrome

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'place to fly' is the definition.
(airfield for helicopters)

'new delhi over another city' is the wordplay.
'new' is an anagram indicator.
'over' means one lot of letters go next to another (in a down clue, some letters go over others).
'another city' becomes 'rome' (Rome is an example. I am not sure about the 'another' bit.).
'delhi' is an anagram of 'helid'.
'helid'+'rome'='HELIDROME'

'from' acts as a link.

Can you help me to learn more?

I've seen this clue in The Times.

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