Sir Patrick, one hears? Rather, Sir Thomas (4)
I believe the answer is:
more
'sir thomas' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for more that I've seen before include "author" , "Greater quantity or number" , "A greater amount" , "Extra (for Sir Thomas?)" , "See 9" .)