Schedule item to be thrashed out by the board (9)
I believe the answer is:
timetable
'schedule' is the definition.
(I know that timetable is a type of schedule)
'item to be thrashed out by the board' is the wordplay.
I cannot really see how this works, but
an anagram of 'item' is 'time' which is within the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is present in the answer.
The remaining letters 'able' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for timetable that I've seen before include "Syllabus" , "Programme" , "Schedule of events" .)