Two animals create tungsten (7)
I believe the answer is:
wolfram
'tungsten' is the definition.
(synonyms)
'two animals' is the wordplay.
'two animals' can mean two replacements for 'animal'.
'animal' becomes 'wolf' (I have seen 'Predatory animal' mean 'wolf' so perhaps 'animal' could also mean 'wolf').
'animal' becomes 'ram' (male sheep).
'wolf'+'ram'='WOLFRAM'
'create' is the link.
(Other definitions for wolfram that I've seen before include "Heavy metal" , "at no 74, originally" , "greyish-white metal" , "elemental" , "Tungsten" .)