Men Only organ writing about article in Times (8)
I believe the answer is:
Here is my best explanation:
'men only organ' is the definition.
'writing about article in times' is the wordplay.
'writing' becomes 'prose' (I've seen this in other clues**).
'about' indicates putting letters inside.
'article' becomes 'a' (indefinite article).
'in' is an insertion indicator.
'times' becomes 'tt' (two abbreviations for time).
'a' put inside 'tt' is 'tat'.
'prose' placed around 'tat' is 'PROSTATE'.
(Other definitions for prostate that I've seen before include "A protest about a troublesome male gland" and "Gland".)