Emboldened by my being able to answer in the other thread, here goes...
I think it's Gold but I have one piece that is not fitting.
said to = told
horse feed = oat(s)
eat - remove
Goat + told - oat = Gtold
What makes more sense is
Goat + (4 letter word starting with s) - oats = THE ANSWER
but I can't come up with a good 4 letter synonym to "said to" that starts with s and when replaced by g makes a word.
Please let me know if this kind of discussion is okay or if I should stick to just trying an answer.
Added: I forgot that the clue must indicate the answer as well so I guess Gold is out. Thanks for bearing with my newbie stumblings.