In which to find an artist's early work? (10)
I believe the answer is:
sketchbook
'in which to find' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'artist's early work?' is the wordplay.
'artist's early' becomes 'sketch' (I can't explain this - if you can you should believe this answer much more).
'work?' becomes 'book' (book is a kind of work).
'sketch'+'book'='SKETCHBOOK'
'an' acts as a link.
Can you help me to learn more?
(Other definitions for sketchbook that I've seen before include "Drawing pad" , "Pad for artist's preparatory work" , "Artist's vade mecum" .)