Crossword Genius

Keen tourist, German, given piece of brain and pig's foot (12)

Ross

I believe the answer is:

globetrotter

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

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

'german given piece of brain and pig's foot' is the wordplay.
'german' becomes 'g' (abbreviation).
'given' is a charade indicator (letters next to each other).
'piece of brain' becomes 'lobe' (I can't explain this - if you can you should believe this answer much more).
'and' means one lot of letters go next to another.
'pig's foot' becomes 'trotter' (trotter means a pig's foot eaten as food).
'g'+'lobe'+'trotter'='GLOBETROTTER'

Can you help me to learn more?

(Other definitions for globetrotter that I've seen before include "Well-travelled person" , "One who travels widely" , "Habitual worldwide traveller" , "Wide-ranging traveller" , "seasoned traveller" .)

I've seen this clue in The Everyman puzzle in The Observer.
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