Dramatist's The Old Weavers (8)
I believe the answer is:
websters
'weavers' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps they are linked in a way I don't understand?
'dramatist's the old' is the wordplay.
'dramatist' becomes 'webster' (playwright John Webster).
'the old' becomes 's' (I can't explain this - if you can you should believe this answer much more).
'webster'+'s'='WEBSTERS'
Can you help me to learn more?
(Another definition for websters that I've seen is " In past times, weavers".)