A sidelong glance is a type of look that is often used to express suspicion, disapproval, or disbelief. It is a sideways glance that is usually accompanied by a raised eyebrow and a slight smirk. The term 'sidelong glance' can also be used to describe a look of admiration or flirtation. The crossword solution for the term 'sidelong glance' is 'LEER, ' which is a type of facial expression that conveys a feeling of lust or sexual desire.