Stars produce this type of family animation (7,6)
I believe the answer is:
nuclear energy
'stars produce this type' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'family animation' is the wordplay.
'family' becomes 'nuclear' (nuclear family is a kind of family).
'animation' becomes 'energy' (energy is a kind of animation).
'nuclear'+'energy'='NUCLEAR ENERGY'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for nuclear energy that I've seen before include "Elementary source of heat and electricity" , "Result of fission or fusion - near Uncle Grey (anag)" .)