Bond brought in to negate the revolution (6)
I believe the answer is:
tether
'bond' is the definition.
(I've seen this before)
'brought in to negate the revolution' is the wordplay.
'brought in' says the answer is hidden in the clue.
'TETHER' is hidden in the letters of 'negate the revolution'.
(Other definitions for tether that I've seen before include "Rope for confining animal" , "Restrictive rope fixed to one spot" , "lead" , "Tie to a spot" , "End of ones --" .)