It's terrible in a roundabout way in Germany to mock (6)
I believe the answer is:
deride
'mock' is the definition.
(deriding is a kind of mocking)
'it's terrible in a roundabout way in germany' is the wordplay.
'it's terrible' becomes 'dire' (synonyms).
'in a roundabout way' says the letters should be written backwards.
'in' is an insertion indicator.
'germany' becomes 'de' (I've seen this in other clues).
'dire' reversed gives 'erid'.
'erid' inserted inside 'de' is 'DERIDE'.
'to' acts as a link.
(Other definitions for deride that I've seen before include "Ridicule, laugh at" , "Knock" , "Laugh at or make fun of" , "Mock, scorn" , "Ridicule, scoff at" .)