Definitely. I once put a semi defrosted chicken in my slow cooker at 8am and at 6pm it was lovely. Normally slow cooked whole chickens are disgusting, inedible slop so maybe you could try and and see if you can manage to eat it.
Ah I am so afraid of chicken. I'm always freezing it. And eventually throw it away as I'm too scared to defrost it 🙈 Why is there no proper guidelines for this! Ps I've done a food and hygiene course. I still don't know my way around a chicken.