Here are the possible solutions for '70s lottery support group clue
Answer
Clue
Relevancy
draftboard
Clue
'70s lottery support group
abba
Clue
Top-selling pop group of the '70s
'70s mega-selling pop group
Definition
a Syrian cloth of goat's or camel's hair; an outer garment made of it, also ABA, ABAYA
atlantisrhythmsection
Clue
'70s funk group that disappeared mysteriously?
baycityroller
Clue
Member of a popular '70s Scottish rock group
bto
Clue
'70s rock group for short
devo
Clue
Quirky '70s rock group
'70s New Wave group
Definition
(short for) devolution, as in devo max, an arrangement in which a central government transfers the maximum amount of authority to a regional government while still retaining sovereignty over it