From birth, that is removed from girl's back (5)

I believe the answer is:

natal

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'from birth' is the definition.
(I've seen this before)

'removed from girl's back' is the wordplay.
'removed from' becomes 'nata' (I can't justify this - if you can you should give a lot more credence to this answer).
'back' suggests the final letters (the letter at the back).
The last letter of 'girl' is 'l'.
'nata'+'l'='NATAL'

'that is' acts as a link.

Can you help me to learn more?

(Other definitions for natal that I've seen before include "South African region" , "Province of South Africa" , "Connected to birth" , "Relating to deliveries" , "Province at one time" .)

I've seen this clue in The Times.

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