Small ruler comes from Borneo (6)
I believe the answer is:
oberon
'small ruler' is the definition.
'oberon' can be an answer for 'ruler' (I've seen this before). I am not certain of the 'small' bit.
'from borneo' is the wordplay.
'from' indicates an anagram (from the letters).
'borneo' anagrammed gives 'OBERON'.
'comes' is the link.
Can you help me to learn more?
(Other definitions for oberon that I've seen before include "Satellite" , "Spirited king" , "Titania's husband" , "...[IN DREAM] with king" , "MND fairy king" .)