Almost defeat drag (6)
I believe the answer is:
bestow
'almost defeat drag' is the definition.
I can't judge whether this defines the answer.
'almost defeat drag' is the wordplay.
'almost' means to remove the last letter (most of the word but not all of it).
'defeat' becomes 'best' (besting is a kind of defeating).
'drag' becomes 'tow' (towing is a kind of dragging).
'best' with its last letter removed is 'bes'.
'bes'+'tow'='BESTOW'
Can you help me to learn more?
(Other definitions for bestow that I've seen before include "'Confer, present (6)'" , "Endow, present" , "Grant" , "Confer (an honour)" , "Confer or award" .)