Oral broadcast about your first king, say (5)
I believe the answer is:
royal
'king say' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'oral broadcast about your first' is the wordplay.
'broadcast' indicates an anagram (letters scattered or cast around).
'about' is an insertion indicator.
'your first' becomes 'y' (1st letter of 'your').
'oral' with letters rearranged gives 'roal'.
'roal' going around 'y' is 'ROYAL'.
Can you help me to learn more?
(Other definitions for royal that I've seen before include "With kingly status" , "Relating to a monarch" , "Shade of blue" , "Splendid!" , "Relating to kings/queens" .)