Clue: Ensnared by misfortune, a senator feeling nervous (6)
Answer: UNEASE
Explanation: Definition: f
Hidden in [ensnared by] "misfort**UNE A SE**nator" 
 
 
*As "unease" is a noun" and "feeling" (in this case) a verb, I am assuming that Azed is waxing poetical, and intends us to read the phrase as "nervous feeling"