Paddy in sensible jumper at first gets a degree of comfort (4,11)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

in the definition, "degree" can refer to a unit of temperature (e.g. degrees Celsius) TEMPER="Paddy" (a fit of anger/temper), inside MATURE="sensible"; with ROO (kangaroo, jumping animal, "jumper") going first