Work at something for cow and sheep: start of agricultural programme (9)
I believe the answer is:
docudrama
'programme' is the definition.
(I've seen this before)
'work at something for cow and sheep start of agricultural' is the wordplay.
I cannot really see how this works, but
'work' could be 'drama' (I have seen 'Theatrical work ' mean 'drama' so perhaps 'work' could also mean 'drama') and 'drama' is found in the answer.
'of' could be 'o' and 'o' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for docudrama that I've seen before include "sort of play" , "Dramatised TV programme based on real events" , "realistic fiction" , "TV play based on real events" .)