Senator Murkowski (4)
I believe the answer is:
lisa
'senator murkowski' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for lisa that I've seen before include "Leonardo da Vinci painted the 'Mona ....'" , "Mona . . . ., famous painting by Leonardo da Vinci" , "Mona ..., also called La Gioconda" , "Girl" , "Most intelligent of Marge Simpson's children" .)