Looked to give shelter to a revolutionary (6)
I believe the answer is:
leered
'looked' is the definition.
(leering is a kind of looking)
'give shelter to a revolutionary' is the wordplay.
'give' is a charade indicator (letters next to each other).
'shelter' becomes 'lee' (as in lee side, the side sheltered from wind).
'to a revolutionary' becomes 'red' (red can informally mean a communist).
'lee'+'red' is 'LEERED'.
'to' acts as a link.
(Other definitions for leered that I've seen before include "Looked or stared lasciviously" , "Looked suggestively" , "Looked and smiled lasciviously" , "Looked lecherously" , "Gazed at lasciviously" .)