Kingdoms about to receive charity (6)
I believe the answer is:
realms
'kingdoms' is the definition.
(I know this)
'to receive charity' is the wordplay.
'to receive' becomes 're' (I can't justify this - if you can you should give a lot more credence to this answer).
'charity' becomes 'alms' (alms is a kind of charity).
're'+'alms'='REALMS'
'about' is the link.
Can you help me to learn more?
(Other definitions for realms that I've seen before include "Domains - provinces" , "Kingdoms, domains" , "Domains ruled by king or queen" , "regions" , "Fields of activity or interest - sound monarchical" .)