Revive electronic R&B covers, also on the rise (6)
I believe the answer is:
reboot
'revive' is the definition.
(rebooting is a kind of reviving)
'electronic rb covers also on the rise' is the wordplay.
'electronic' becomes 'e' (as in e-mail or e-books).
'covers' indicates putting letters inside.
'also' becomes 'too' (synonyms).
'on the rise' says the letters should be written in reverse.
'too' in reverse letter order is 'oot'.
'e' put within 'rb' is 'reb'.
'reb'+'oot'='REBOOT'
(Other definitions for reboot that I've seen before include "Re-start up a computer's initial program" , "Start notebook again" , "Recover from crash" , "Start up a computer's initial program again" , "Start (computer) again" .)