Detective ordered shuttle, lacking time (6)
I believe the answer is:
sleuth
'detective' is the definition.
(I know that sleuth is a type of detective)
'ordered shuttle lacking time' is the wordplay.
'ordered' is an anagram indicator.
'lacking' is a deletion indicator.
'time' becomes 't' (abbreviation).
'shuttle' with 't' taken out is 'shutle'.
'shutle' is an anagram of 'SLEUTH'.
(Other definitions for sleuth that I've seen before include "Olivier/Caine film" , "Private eye" , "tracker" , "Detective who follows a trail" , "Hustle for a clever detective like Sherlock" .)