Loss of sense in America? I'm so naive returning (7)

I believe the answer is:

anosmia

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

'loss of sense' is the definition.
'anosmia' can be an answer for 'loss' (I have seen 'Loss of smell' mean 'anosmia' so perhaps 'loss' could also mean 'anosmia'). I am not certain of the 'of sense' bit.

'in america? i'm so naive returning' is the wordplay.
'in' says the answer is hidden in the clue.
'returning' shows that the letters should be reversed in order.
'aimsona' can be found hidden inside 'america im so naive'.
'aimsona' in reverse letter order is 'ANOSMIA'.

Can you help me to learn more?

(Other definitions for anosmia that I've seen before include "The loss of the sense of smell" , "lack of sense" .)

I've seen this clue in The Independent.

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