Learning to make idea count (9)
I believe the answer is:
'learning' is the definition.
(education is a kind of learning)
'make idea count' is the wordplay.
'make' indicates anagramming the letters.
'ideacount' with letters rearranged gives 'EDUCATION'.
'to' acts as a link.
(Other definitions for education that I've seen before include "Blair's triple mantra" , "Teaching - knowledge" , "Knowledge acquired by learning and instruction" , "Culture" , "training" .)