Puzzle trouble

Got a tricky puzzle here that needs completing
in one of my mums puzzle mags
It’s supposed to make a new word down
using the 4th letter of each answer
Thanks for any help. I think I’ve got a few but unsure
Spear 7 letters
Rich bread 7 letters
French country house Chateau?
Silklike fabric 7 letters
Highly flammable liquid 7 letters
10th month of the year October
Domesticated birds parrots?
Endure 7 letters

Rich bread could be brioche, and a spear might be trident or harpoon?

Thanks that makes the answer I need d or p, o, t, ?, ?, o, r ?
I think the answer in starred column 4 might be potatoes can anyone find the missing ones to fit? That parrots could be wrong.

Could the bird be chicken?

silk fabric = taffeta?

endure = persist?

Persist looks good
I could only think of survive but that would mean using the v as the last letter which isn't likely.

fabric - organza

flammable liquid - acetone

domesticated bird - pigeons