Look for shelter on the right (4)
I believe the answer is:
leer
'look' is the definition.
(I know that leer is a kind of look)
'shelter on the right' is the wordplay.
'shelter' becomes 'lee' (as in lee side, the side sheltered from wind).
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'the right' becomes 'r' (common abbreviation).
'lee'+'r'='LEER'
'for' acts as a link.
(Other definitions for leer that I've seen before include "Give lascivious look" , "unpleasant look" , "Suggestive or sneering look" , "Lecherous look" , "Give sly look" .)