There's no sweat doing things with it (4)
I believe the answer is:
ease
'there's no sweat doing' is the definition.
I can't tell whether this defines the answer.
'things with it' is the wordplay.
'things' becomes 'eas' (I can't explain this - if you can you should give a lot more credence to this answer).
'with' is a charade indicator (letters next to each other).
'it' becomes 'e' ('e' can mean 'electronic' which is similar to 'IT').
'eas'+'e'='EASE'
Can you help me to learn more?
(Other definitions for ease that I've seen before include "Free from pain" , "Make comfortable" , "Affluence" , "Lessen intensity" , "Comfort; facility" .)