Family mass involves strange god in sovereign state (7)
I believe the answer is:
kingdom
'sovereign state' is the definition.
'kingdom' can be an answer for 'state' (kingdom is a kind of state). I am unsure of the 'sovereign' bit.
'family mass involves strange god' is the wordplay.
'family' becomes 'kin' (synonyms).
'mass' becomes 'm' (symbol used in Physics e.g. f=ma).
'involves' is an insertion indicator.
'strange' indicates an anagram.
'kin'+'m'='kinm'
'god' anagrammed gives 'gdo'.
'kinm' enclosing 'gdo' is 'KINGDOM'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for kingdom that I've seen before include "big territory?" , "State ruled by monarch" , "Country with royal head of state" , "Major category of biological classification" , "State with a monarchy" .)