Look for shelter by right (4)
I believe the answer is:
leer
'look' is the definition.
(I know that leer is a type of look)
'shelter by right' is the wordplay.
'shelter' becomes 'lee' (as in lee side, the side sheltered from wind).
'by' says to put letters next to each other.
'right' becomes 'r' (common abbreviation).
'lee'+'r'='LEER'
'for' is the link.
(Other definitions for leer that I've seen before include "Give lascivious look" , "Lecherous look" , "Look lecherously" , "Look suggestively" , "Stare suggestively" .)