Accurate time shown on French street (4)
I believe the answer is:
true
'accurate' is the definition.
(similar in meaning)
'time shown on french street' is the wordplay.
'time' becomes 't' (abbreviation).
'shown on' means one lot of letters go next to another.
'french street' becomes 'rue' (French for street or road).
't'+'rue'='TRUE'
(Other definitions for true that I've seen before include "Loyal; authentic" , "Constant" , "A false alternative?" , "Real, actual" , "Dependable -- loyal" .)