G W Bush occasionally visited an Eastern city (5)

I believe the answer is:

wuhan

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

'an eastern city' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'g w bush occasionally visited' is the wordplay.
'occasionally' indicates alternate letters (letters taken at regular intervals or occasions).
'visited' becomes 'an' (I am not sure about this - if you are sure you should believe this answer much more).
'g'+'w'+'bush'='gwbush'
The alternating letters of 'gwbush' are 'wuh'.
'wuh'+'an'='WUHAN'

Can you help me to learn more?

I've seen this clue in The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.