Special ___ (3)
(Other definitions for ops that I've seen before include "Military (or surgical) procedures" , "Operations (abbrev.)" , "Surgical procedures (abbr)" , "medical procedures" , "Military operations" .)
'special' is the definition.
(I know that special can be written as particular)
This is all the clue.
(Other definitions for particular that I've seen before include "item" , "certain" , "Nice" , "Exceptional" , "Respect" .)