In care? (4,4)
I believe the answer is:
home help
'in care?' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'in care?' is the wordplay.
'in' becomes 'home' ('he's in' can mean 'he's home').
'care?' becomes 'help' (I can't justify this - if you can you should give a lot more credence to this answer).
'home'+'help'='HOME-HELP'
Can you help me to learn more?
(Other definitions for home help that I've seen before include "Carer" , "Caring worker" , "Domestic aid" , "Assister for the disabled" , "hand?" .)