Inclined to wash, disregarding cold temperature (5)
I believe the answer is:
leant
'inclined' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for leant that I've seen before include "Rested sideways (on something)" , "pressed on" , "Had tendency" , "Advanced" , "Tilted" .)