Scientist testing ice melting (10)

I believe the answer is:

geneticist

'scientist' is the definition.
(I know that geneticist is a type of biologist)

'testing ice melting' is the wordplay.
'melting' indicates anagramming the letters.
'testing'+'ice'='testingice'
'testingice' is an anagram of 'GENETICIST'.

(Another definition for geneticist that I've seen is " One studying inherited characteristics".)

I've seen this clue in The Guardian.

Want a hint initially instead of a full solution? Install my app