Not done too well today, grateful for any help please: 11a. Type of religious pamphlet (5) --a-t 21a. Gum resin used as a strong yellow pigment and a purgative (7) g---o-- 9d. School of Hellenistic philosophy founded by Greek philosopher Zeno of Citium (8) ---i-i-- 18d. In law, final judgment of guilty in a criminal case and punishment imposed (8) 23d. Indian term for a light snack (6) -i-f-n