John from Majorca (5)
I believe the answer is:
major
'john from majorca' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
This is all the clue.
Can you help me to learn more?
(Other definitions for major that I've seen before include "Important, significant" , "See 2" , "Army rank" , "course for American students" , "5,27 [PRIME MINISTER]" .)