Snatch some shuteye after child (6)
I believe the answer is:
kidnap
'snatch' is the definition.
(I know that snatch can be written as kidnap)
'some shuteye after child' is the wordplay.
'some shuteye' becomes 'nap' (I can't justify this - if you can you should believe this answer much more).
'after' means one lot of letters go next to another.
'child' becomes 'kid' (synonyms).
'nap' put after 'kid' is 'KIDNAP'.
Can you help me to learn more?
(Other definitions for kidnap that I've seen before include "Shanghai, abduct" , "Abduct and hold for ransom" , "Take person prisoner for ransom" , "'Abduct, snatch (6)'" , "Seize and hold for ransom" .)