In truth, it’s a thing to get out of! (3)
I believe the answer is:
rut
'a thing to get out of' is the definition.
I can't judge whether this defines the answer.
'in truth it's' is the wordplay.
'in' indicates the answer is hidden within the clue.
'RUT' can be found hidden inside 'truth its'.
Can you help me to learn more?
(Other definitions for rut that I've seen before include "deer find it exciting" , "Monotonous routine that's hard to escape" , "It's hard to get out of" , "Wheel-furrow" , "Groove or routine" .)