Princess forbidden to go out of bounds (4)
I believe the answer is:
anne
'princess' is the definition.
(Princess Anne, daughter of Queen Elizabeth)
'forbidden to go out of bounds' is the wordplay.
'forbidden' becomes 'nne' (I can't explain this - if you can you should give a lot more credence to this answer).
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'go' becomes 'leave' (go can mean to depart or leave).
'out of bounds' means to look at the middle letters (the bounds or edges of the word are removed).
The middle letter of 'leave' is 'a'.
'nne' put after 'a' is 'ANNE'.
Can you help me to learn more?
(Other definitions for anne that I've seen before include "The Bard wooed and won her" , "Second or fourth wife of Henry VIII" , "Stuart queen" , "Female name" , "First queen of Great Britain and Ireland" .)