### Clue: Affected by walkout, council leader's in with Unison at last (8)
### Answer: STRICKEN 
 ### Explanation: Definition: Affected by
  [ STRIKE(a walkout;an industrial action) **containing**(…'s in) **the 1st letter of**(… leader) "council" ] **plus**(with) **the last letter of**(… at last) "Unison".