Turn into something else (5)

I believe the answer is:

hinge

'turn' is the definition.
(thesaurus)

'into something else' is the wordplay.
'into' indicates a hidden word.
'HINGE' is hidden within 'something else'.

(Other definitions for hinge that I've seen before include "Joint between door and frame" , "Key principle" , "Joint on which things turn" , "Device for letting door etc swing" , "On what a door swings" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.