Words of opposition from Roman General’s manuscript (8)
I believe the answer is:
antonyms
'words of opposition from roman' is the definition.
'antonyms' can be an answer for 'words' (antonym is a kind of word). I'm unsure of the 'of opposition from roman' bit.
'general's manuscript' is the wordplay.
'general' becomes 'antony' (I've seen this before).
'manuscript' becomes 'ms' (abbreviation for manuscript).
'antony'+'ms'='ANTONYMS'
Can you help me to learn more?
(Other definitions for antonyms that I've seen before include "Words opposite in meaning to others" , "They are opposed" , "'Good' and 'bad' are examples" , "sickness and health for example" , "My son, Nat, turns to words which are opposite in meaning" .)