Yours truly about to get bare (4)
I believe the answer is:
mere
'bare' is the definition.
(I've seen this before)
'yours truly about' is the wordplay.
'yours truly' becomes 'me'.
'about' becomes 're' (regarding).
'me'+'re'='MERE'
'to get' is the link.
(Other definitions for mere that I've seen before include "Nothing more than a small pool" , "Unimpressive" , "Nothing more than - water" , "President Hollande's mother?" , "Small area of standing water" .)