Manipulate true mean, having mathematical ability (8)
I believe the answer is:
numerate
'having mathematical ability' is the definition.
I can't judge whether this defines the answer.
'manipulate true mean' is the wordplay.
'manipulate' indicates anagramming the letters (I've seen 'manipulated' mean this).
'true'+'mean'='truemean'
'truemean' anagrammed gives 'NUMERATE'.
Can you help me to learn more?
(Other definitions for numerate that I've seen before include "Competent at arithmetic" , "Able to work with numbers - tell" , "Good at sums and maths" , "Able to use figures" , "Understanding arithmetic" .)