Predict free lot breaking before start of lunch (8)
I believe the answer is:
foretell
'predict' is the definition.
(I know that predict can be written as foretell)
'free lot breaking before start of lunch' is the wordplay.
'breaking' indicates anagramming the letters.
'before' is a charade indicator (letters next to each other).
'start of' indicates taking the first letters.
The first letter of 'lunch' is 'l'.
'free'+'lot'='freelot'
'freelot' anagrammed gives 'foretel'.
'foretel'+'l'='FORETELL'
(Other definitions for foretell that I've seen before include "Herald" , "supporting English archer" , "'Predict, prophesy (8)'" , "Divine" , "Prognosticate" .)