Queen and footling male ruled land (5)
I believe the answer is:
realm
'ruled land' is the definition.
'realm' can be an answer for 'land' (I've seen this before). I am not certain of the 'ruled' bit.
'queen and footling male' is the wordplay.
'queen' becomes 'r' (abbreviation for regina, e.g. in ER ).
'and' is a charade indicator (letters next to each other).
'footling' becomes 'eal' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'male' becomes 'm' (common abbreviation).
'r'+'eal'+'m'='REALM'
Can you help me to learn more?
(Other definitions for realm that I've seen before include "field of study" , "Kingdom, or field of activity" , "Kingdom, domain" , "Country" , "region" .)