Source of issue among computer users (6)
I believe the answer is:
uterus
'source of' is the definition.
The definition suggests a singular noun which matches the answer.
'among computer users' is the wordplay.
'among' says the answer is hidden in the clue.
'UTERUS' is hidden in the letters of 'computer users'.
'issue' is the link.
Can you help me to learn more?
(Other definitions for uterus that I've seen before include "Latin name for the womb" , "Organ" , "development centre" , "The formal womb" , "Here, conceive" .)