The sailmaker's daughter? (4)
I believe the answer is:
lisa
'the sailmaker's daughter?' is the definition.
The definition suggests a singular noun which matches the answer.
This is the entire clue.
Can you help me to learn more?
(Other definitions for lisa that I've seen before include "Leonardo da Vinci painted the 'Mona ....'" , "Girl" , "Mona . . . ., famous painting by Leonardo da Vinci" , "Mona ..., also called La Gioconda" , "Most intelligent of Marge Simpson's children" .)