Crossword Genius

Rare earth? Try it out with some hesitation (7)

Ross

I believe the answer is:

yttrium

I'm a little stuck... Click here to teach me more about this clue!

'rare earth?' is the definition.
The answer and definition can be both substances as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'try it out with some hesitation' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'with' is a charade indicator (letters next to each other).
'some hesitation' becomes 'um' (um is said in hesitation).
'try'+'it'='tryit'
'tryit' with letters rearranged gives 'yttri'.
'yttri'+'um'='YTTRIUM'

Can you help me to learn more?

(Other definitions for yttrium that I've seen before include "Rare earth element" , "Chemical element; um, try it (anag.)" , "Metallic element, symbol Y" , "Silvery metallic element" , "Table item" .)

I've seen this clue in The Independent.
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