Touring Italy, fast Frenchman's in good health (6)
I believe the answer is:
prosit
'good health' is the definition.
(German toast for drinking someone's health)
'touring italy fast frenchman's' is the wordplay.
I cannot really see how this works, but
'italy' could be 'it' and 'it' is found within the answer.
The remaining letters 'pros' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'in' acts as a link.
Can you help me to learn more?
(Other definitions for prosit that I've seen before include "(German for) cheers!" , "Drinking call, good health to you" , "Good luck to you" , "Drinking salutation" , "Bottoms up (in Germany)" .)