Crossword Genius

Workman in Berlin with touch of henna on hair? (9)

Ross

I believe the answer is:

locksmith

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

'workman' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see a link between them that I don't see?

'berlin with touch of henna on hair?' is the wordplay.
'berlin with' becomes 'smit' (I can't explain this - if you can you should believe this answer much more).
'touch of' indicates taking the first letters.
'on' means one lot of letters go next to another.
'hair?' becomes 'lock' (a lock of hair).
The initial letter of 'henna' is 'h'.
'smit'+'h'='smith'
'smith' after 'lock' is 'LOCKSMITH'.

'in' is the link.

Can you help me to learn more?

(Other definitions for locksmith that I've seen before include "Security device maker" , "hairdresser?" , "laughing stock" , "Security expert" , "Security worker" .)

I've seen this clue in The Times.
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