Take too far (6)
I believe the answer is:
overdo
'take too far' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for overdo that I've seen before include "Be excessive, perhaps in cooking food" , "Be excessive, say cook too long" , "Maybe burn" , "Cook too long or act excessively" , "Exaggerate; use too much of" .)