Clue: Disgust leads to Unionists executing those imprisoned in Peasants' Revolt (8)
Answer: NAUSEATE
Explanation: Definition: Disgust
***(ueeasant) **[anag:*revolt*] where UE is [*leads to*] U(nionists) E(xecuting) and EASANT is [*those imprisoned in*] (p)EASANT(s)