Juliet right inside, on her balcony, mixed strong booze (4,10)

I believe the answer is:

john barleycorn

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

'strong booze' is the definition.
'John Barleycorn' can be an answer for 'booze' (synonyms). I am not certain of the 'strong' bit.

'juliet right inside on her balcony mixed' is the wordplay.
'juliet' becomes 'J' (phonetic alphabet: alpha, bravo, charlie etc.).
'right inside' becomes 'orn' (I can't explain this - if you can you should believe this answer much more).
'on' means one lot of letters goes inside another (as in clothing 'on' a person).
'mixed' indicates an anagram.
'her'+'balcony'='herbalcony'
'herbalcony' is an anagram of 'hnbarleyco'.
'orn' enclosing 'hnbarleyco' is 'ohnbarleycorn'.
'j'+'ohnbarleycorn'='JOHN BARLEYCORN'

Can you help me to learn more?

(Another definition for john barleycorn that I've seen is " Malt spirits".)

I've seen this clue in The Telegraph.

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