Summon artist for exciting book (4,6)
I believe the answer is:
page turner
'exciting book' is the definition.
(I've seen this before)
'summon artist' is the wordplay.
'summon' becomes 'page' (paging is a kind of summoning).
'artist' becomes 'turner' (painter JMW Turner).
'page'+'turner'='PAGE-TURNER'
'for' acts as a link.
(Other definitions for page turner that I've seen before include "exciting novel?" , "someone to assist pianist" , "exciting work" , "Enthralling work" , "someone to help accompanist" .)