Looks like lechers having no companion (5)
I believe the answer is:
leers
'looks' is the definition.
(leer is a kind of look)
'lechers having no companion' is the wordplay.
'having no' is a deletion indicator.
'companion' becomes 'ch' (I've seen this in other clues).
'lechers' with 'ch' removed is 'LEERS'.
'like' acts as a link.
(Other definitions for leers that I've seen before include "Ogles" , "Looks lasciviously" , "Reels (anag.)" , "Lecherous looks" .)