Sunny place to provide her tan? (6)

I believe the answer is:

tehran

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

'sunny place to' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'her tan?' is the wordplay.
'her tan' can be anagrammed to 'TEHRAN'.
Though, I am not clear how the anagram is indicated.

'provide' acts as a link.

Can you help me to learn more?

(Other definitions for tehran that I've seen before include "Capital city of Iran (6)" , "Iran's capital" , "Iranian capital" .)

I've seen this clue in The Globe and Mail.

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