Summon artist that's difficult to put down (4-6)
I believe the answer is:
page-turner
'difficult to put down' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'summon artist' is the wordplay.
'summon' becomes 'page' (paging is a kind of summoning).
'artist' becomes 'turner' (19th century british painter).
'page'+'turner'='PAGE-TURNER'
'that's' is the link.
Can you help me to learn more?
(Other definitions for page-turner that I've seen before include "exciting book" , "'Unputdownable' book" , "Book one can't put down" , "Gripping book" .)