Obliquely like the French, not without love (6)
I believe the answer is:
aslant
'obliquely' is the definition.
('aslant' can be a synonym of 'obliquely')
'like the french not without love' is the wordplay.
'like' becomes 'as'.
'the french' becomes 'la'.
'without' indicates named letters should be taken away.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'not' with 'o' taken out is 'nt'.
'as'+'la'+'nt'='ASLANT'
(Other definitions for aslant that I've seen before include "Skewed" , "sloping away?" , "Out of the vertical" , "oblique view" , "Skew-whiff" .)