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