Oblique, indirect (8)
I believe the answer is:
sidelong
I believe this clue is a double definition.
'oblique' is the first definition.
(I've seen this in another clue)
'indirect' is the second definition.
(similar in meaning)
(Other definitions for sidelong that I've seen before include "This glance could be one of doubt or envy" , "in a sly way?" , "Oblique, indirect" .)