Exclamation of mistake from doctor attending surgical procedures (6)
I believe the answer is:
whoops
'exclamation of mistake' is the definition.
('whoops' is said in response to a mistake)
'doctor attending surgical procedures' is the wordplay.
'doctor' becomes 'who' (I have seen 'Fictional doctor' mean 'who' so perhaps 'doctor' could also mean 'who').
'attending' is a charade indicator (letters next to each other).
'surgical procedures' becomes 'ops' (op is short for operation).
'who'+'ops'='WHOOPS'
'from' acts as a link.
(Other definitions for whoops that I've seen before include "Oh dear! That was a mistake!" , "Something said after minor accident or mistake" , "Exclamation after a mistake; wild cries" , "Worrying cry" , "Yikes, I've dropped something!" .)