In front of Parisian street, nut translated: 'Like a pork pie?' (6)
I believe the answer is:
untrue
'like a pork pie?' is the definition.
('pork pie' is Cockney rhyming slang for 'lie')
'in front of parisian street nut translated' is the wordplay.
'in front of' means one lot of letters go next to another.
'parisian street' becomes 'rue'.
'translated' indicates an anagram.
'nut' anagrammed gives 'unt'.
'rue' after 'unt' is 'UNTRUE'.
(Other definitions for untrue that I've seen before include "Not in accordance with the facts" , "False or crooked" , "disloyal" , "Not correct, like a lie" , "Not loyal" .)