Fill beyond capacity on the day I eat out (7)
I believe the answer is:
satiate
'fill beyond capacity' is the definition.
(I've seen this in another clue)
'the day i eat out' is the wordplay.
'the day' becomes 'sat' (abbreviation for Saturday).
'out' is an anagram indicator (out can mean wrong or inaccurate).
'eat' is an anagram of 'ate'.
'sat'+'i'+'ate'='SATIATE'
'on' acts as a link.
(Other definitions for satiate that I've seen before include "Overfill - gorge" , "Have more than enough" , "Fill to satisfaction" , "Completely satisfy" , "Satisfy fully, cloy with excess" .)