Male artist on the rise, establishing band's lilting electronic rock (6)
I believe the answer is:
marble
'rock' is the definition.
(marble is a kind of rock)
'male artist on the rise establishing' is the wordplay.
'male' becomes 'm' (common abbreviation).
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'on the rise' is a reversal indicator (in a down clue, letters go up).
'establishing' becomes 'ble' (I am not sure about this - if you are sure you should believe this answer much more).
'ra' written backwards gives 'ar'.
'm'+'ar'+'ble'='MARBLE'
'band's lilting electronic' acts as a link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for marble that I've seen before include "Small ball of glass used in game" , "'Hard, crystalline rock (6)'" , "Small ball of glass used in games" , "Rock used for sculptures" , "Crystalline limestone often used by sculptors" .)