Made sense of Fahrenheit in Germany (8)
I believe the answer is:
fathomed
'made sense' is the definition.
(fathom can mean to make sense of something)
'fahrenheit in germany' is the wordplay.
'fahrenheit' becomes 'f' (abbreviation).
'in' becomes 'at home' (someone at home is 'in').
'germany' becomes 'd' (vehicle registration code for Deutschland).
'f'+'athome'+'d'='FATHOMED'
'of' is the link.
(Other definitions for fathomed that I've seen before include "Got" , "Sounded" , "Deeply understood" .)