Drag fish up away from the wind (7)
I believe the answer is:
leeward
'away from the wind' is the definition.
(I've seen this before)
'drag fish up' is the wordplay.
'drag' becomes 'draw' ('draw' can be a synonym of 'drag').
'fish' becomes 'eel' (eel is a kind of fish**).
'up' says the letters should be written in reverse (in down clue: letters go upwards).
'draw'+'eel'='draweel'
'draweel' written backwards gives 'LEEWARD'.
(Other definitions for leeward that I've seen before include "The way the wind blows" , "to one side of boat" , "Islands" , "Heading for shelter" , "Draw eel (anag.)" .)