Darn! Flipping husband entirely rendered powerless in song (2,5,8)

'song' is the definition.
(We Shall Overcome is a protest song)

'darn flipping husband entirely rendered powerless' is the wordplay.
'darn' becomes 'sew' (I've seen this in another clue).
'flipping' shows that the letters should be reversed in order.
'husband' becomes 'h' (abbreviation).
'entirely' becomes 'all' (all can mean entirely or completely).
'rendered powerless' becomes 'overcome' (to overcome someone is to render them powerless).
'sew' reversed gives 'wes'.
'wes'+'h'+'all'+'overcome'='WE SHALL OVERCOME'

'in' acts as a link.