All-time low for some in a directive (5)
I believe the answer is:
nadir
'all-time low' is the definition.
(I've seen this in another clue)
'some in a directive' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'NADIR' is hidden in the letters of 'in a directive'.
'for' is the link.
(Other definitions for nadir that I've seen before include "deep despair" , "All-time low" , "Very bottom, farthest from zenith" , "lowest of the low" , "You can't sink lower!" .)