Take the place of (9)
'take the place of' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for supersede that I've seen before include "Stop using" , "set aside" , "Take the place of, supplant" , "Supplant, replace" , "Take the place of, override" .)
'take the place of' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for supplant that I've seen before include "Oust" , "Displace" , "take another's place" , "Supersede and replace" .)