School flag: red, green and blue, say (7,7)
I believe the answer is:
primary colours
'red green and blue say' is the definition.
I know nothing about this answer so I can't judge whether this works.
'school flag' is the wordplay.
'school' becomes 'primary' (primary school is a type of school).
'flag' becomes 'colours' (colours is a kind of flag).
'primary'+'colours'='PRIMARY COLOURS'
Can you help me to learn more?
(Other definitions for primary colours that I've seen before include "Eg, red, green and blue" , "a range of artists?" .)