Some lover totally unconcealed (5)
I believe the answer is:
overt
'unconcealed' is the definition.
(associated in meaning)
'some lover totally' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'OVERT' is hidden in the letters of 'lover totally'.
(Other definitions for overt that I've seen before include "Done or shown openly" , "Open,up front" , "not disguised" , "Conspicuous" , "Openly displayed" .)