Crossword Genius

Person with privilege uncaps gin and apple drink, say (7)

Ross

I believe the answer is:

insider

I'm a little stuck... Click here to teach me more about this clue!

'person' is the definition.
(insider is a kind of person)

'gin and apple drink say' is the wordplay.
'gin' becomes 'in' (I can't justify this - if you can you should believe this answer much more).
'and' is a charade indicator (letters next to each other).
'apple drink' becomes 'cider' (I've seen this before).
'say' indicates a 'sounds like' (homophone) clue.
'cider' is a homophone of 'sider'.
'in'+'sider'='INSIDER'

'with privilege uncaps' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for insider that I've seen before include "person in the club" , "Accepted member of accepted group, has access to information" , "This trading is illegal, based on confidential information" , "Possible mole" , "Doing time, right, for this" .)

I've seen this clue in the Sydney Morning Herald.
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