Brief contributor to the latest edition (3)
I believe the answer is:
ted
'brief' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'contributor to the latest edition' is the wordplay.
'contributor to' indicates the answer is hidden within the clue (the letters of the answer contribute to the clue).
'TED' can be found hidden inside 'latest edition'.
Can you help me to learn more?
(Other definitions for ted that I've seen before include "Edward (dim.)" , "Hang out to dry" , "Boy" , "Chap" , "-- Hughes, poet laureate" .)