Name is given to Greek nymph (8)
I believe the answer is:
callisto
'greek nymph' is the definition.
The definition suggests a singular noun which matches the answer.
'name is given to' is the wordplay.
'name' becomes 'call' (to call them someone something is to name them).
'given' says to put letters next to each other.
'call'+'is'+'to'='CALLISTO'
Can you help me to learn more?
(Other definitions for callisto that I've seen before include "satellite" , "Female reformed to bear" , "nymph revealing > heavenly body" , "moon of Jupiter" .)