Welshman embraces large artist (4)
I believe the answer is:
dali
'artist' is the definition.
(I've seen this before)
'welshman embraces large' is the wordplay.
'welshman' becomes 'dai' (welsh name).
'embraces' indicates putting letters inside.
'large' becomes 'l'.
'dai' placed around 'l' is 'DALI'.
(Other definitions for dali that I've seen before include "Surrealist Spanish painter, d. 1989" , "Salvador -, twentieth century artist" , "Salvador among artists" , "Salvador . . . . was great Spanish surrealist painter" , "Tree" .)