Crossword Genius

Possibly over in Chile, by a mountain (5)

Ross

I believe the answer is:

'possibly' is the definition.
('maybe' can be a synonym of 'possibly')

'over in chile by a mountain' is the wordplay.
'over' says the letters should be written backwards.
'in' indicates a hidden word.
'ebyam' is hidden within 'chile by a mountain'.
'ebyam' backwards is 'MAYBE'.

(Other definitions for maybe that I've seen before include "Perhaps, might happen", "Perhaps, possibly".)

I've seen this clue in The Independent.