Lover of physicist has rubbish hair (7)

I believe the answer is:

tatlock

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

'lover of physicist' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'rubbish hair' is the wordplay.
'rubbish' becomes 'tat' (tat can mean rubbish or poor-quality material).
'hair' becomes 'lock' (a lock of hair).
'tat'+'lock'='TATLOCK'

'has' acts as a link.

Can you help me to learn more?

I've seen this clue in The Independent.

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