Like some numbers, within moderation always (8)
I believe the answer is:
rational
'like some numbers' is the definition.
'rational' can be an answer for 'numbers' (rational number is a kind of number). I am not sure about the 'like some' bit.
'within moderation always' is the wordplay.
'within' says the answer is hidden in the clue.
'RATIONAL' is hidden in the letters of 'moderation always'.
Can you help me to learn more?
(Other definitions for rational that I've seen before include "In accordance with logic" , "Agreeable to reason" , "Sane; able to think" , "Sane and sensible" , "Sensible, based on reason" .)