Images enthralling a singular old artist (7)
I believe the answer is:
picasso
'artist' is the definition.
(Picasso is an example)
'images enthralling a singular old' is the wordplay.
'images' becomes 'picas' (I can't explain this - if you can you should give a lot more credence to this answer).
'enthralling' indicates putting letters inside.
'a singular' becomes 's' (abbreviation sometimes used in dictionaries).
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'picas' going around 's' is 'picass'.
'picass'+'o'='PICASSO'
Can you help me to learn more?
(Other definitions for picasso that I've seen before include "Pablo . . . . . . ., great Spanish artist of 20th century" , "Spanish cubist painter" , "Spanish artist, 1881-1973" , "As cop is a Spanish painter" , "famous artist" .)