Forbidden city Liverpool has always embraced (5)

I believe the answer is:

lhasa

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

'forbidden city' is the definition.
'Lhasa' can be an answer for 'city' (Lhasa is an example). I am not sure about the 'forbidden' bit.

'liverpool has always embraced' is the wordplay.
'embraced' indicates the answer is hidden within the clue.
'LHASA' can be found hidden inside 'liverpool has always'.

Can you help me to learn more?

(Other definitions for lhasa that I've seen before include "Capital of Tibet" , "The Forbidden City in Tibet" , "Sacred city" , "Group; stripe" , "Luxembourg's a" .)

I've seen this clue in The Telegraph.

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