Some do it for a living, strange as it may sound (3)
I believe the answer is:
dye
'strange as it may sound' is the definition.
I can't tell whether this definition defines the answer.
'some do it for a living' is the wordplay.
'some' indicates taking the first letters.
'it' becomes 'e' ('e' can mean 'electronic' which is similar to 'IT').
'for' means one lot of letters go next to another (I've seen this in other clues).
'a living' becomes 'y' (I am not sure about this - if you are sure you should believe this answer much more).
The first letter of 'do' is 'd'.
'e' put after 'y' is 'ye'.
'd'+'ye'='DYE'
Can you help me to learn more?
(Other definitions for dye that I've seen before include "Colourant" , "Colour or stain something" , "Colouring material" , "Soluble substance for staining or colouring" , "Liquid used to change colour of clothes" .)