Steal away and out during sleep (6)
I believe the answer is:
kidnap
'steal away' is the definition.
Although both the answer and definition are verbs in their base form, I don't understand how one could define the other.
'and out during sleep' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'during' is an insertion indicator.
'sleep' becomes 'kip' (synonyms).
'and' anagrammed gives 'dna'.
'dna' inserted inside 'kip' is 'KIDNAP'.
Can you help me to learn more?
(Other definitions for kidnap that I've seen before include "Shanghai, abduct" , "Abduct (a person)" , "Seize and hold for ransom" , "Small island" , "Take as hostage" .)