He'd fuel ordered, being careful (7)
I believe the answer is:
heedful
'careful' is the definition.
('heedful' can be a synonym of 'careful')
'he'd fuel ordered' is the wordplay.
'ordered' indicates an anagram.
'hed'+'fuel'='hedfuel'
'hedfuel' with letters rearranged gives 'HEEDFUL'.
'being' is the link.
(Other definitions for heedful that I've seen before include "Wary" , "Attentive - circumspect" , "Cautious" , "Attentive, listening carefully" , "Prudent" .)