German brought in to give tour of fair venue (10)
I believe the answer is:
showground
'brought in to give tour of fair venue' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'german' is the wordplay.
I cannot really see how this works, but
'german' could be 'g' (abbreviation) and 'g' is found in the answer.
The remaining letters 'showround' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for showground that I've seen before include "Land for displays" , "Venue for exhibition" .)