Steal some kakapo, a challenge for certain (5)
I believe the answer is:
poach
'steal' is the definition.
(I've seen this in another clue)
'some kakapo a challenge for certain' is the wordplay.
'POACH' is hidden within the letters.
However, I'm uncertain how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for poach that I've seen before include "Steal (game etc)" , "Cook in a simmering liquid" , "Cook in boiling liquid - steal game" , "Cook in hot water" , "Track down" .)