Write something boring about ancient royal (9)
I believe the answer is:
pendragon
'ancient royal' is the definition.
The definition suggests a singular noun which matches the answer.
'write something boring about' is the wordplay.
'write' becomes 'pen' (synonyms).
'something boring' becomes 'drag' (I've seen this in another clue).
'about' becomes 'on' (as in a book 'on' a certain topic).
'pen'+'drag'+'on'='PENDRAGON'
Can you help me to learn more?
(Other definitions for pendragon that I've seen before include "Ruler" , "Tribal chief," , "old British chief" , "King Arthur, for example" , "Uther --" .)