Torn robe on woodland king (6)
I believe the answer is:
oberon
'woodland king' is the definition.
'oberon' can be an answer for 'king' (I've seen this before). I'm unsure of the 'woodland' bit.
'torn robe on' is the wordplay.
'torn' indicates an anagram.
'robe' with letters rearranged gives 'ober'.
'ober'+'on'='OBERON'
Can you help me to learn more?
(Other definitions for oberon that I've seen before include "Play King" , "Fairy king (AMND)" , "Fairy king - no bore (anag)" , "...[IN DREAM] with king" , "Titania's consort" .)