Some still-life artists with cold feet (4)
I believe the answer is:
fear
'cold feet' is the definition.
(I've seen this in another clue)
'some still-life artists' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'FEAR' is hidden in the letters of 'still life artists'.
'with' acts as a link.
(Other definitions for fear that I've seen before include "Dread, alarm" , "Consternation" , "awe" , "Fright" , "Terror" .)