Delete from server, as expected (5)
I believe the answer is:
erase
'delete' is the definition.
(I know that erase is a kind of delete)
'from server as expected' is the wordplay.
'from' indicates the answer is hidden within the clue.
'ERASE' is hidden in the letters of 'server as expected'.
(Other definitions for erase that I've seen before include "Remove recorded material" , "Remove, wipe out" , "Delete" , "Remove permanently" , "Put out of mind" .)