Solutions ........ session has 16 entries with similar clues

• 3-letter words
• metHad a session
• setJazz session
• 4-letter words
• critFeedback session in art school, for short
• boutSession (drinking)
• 5-letter words
• shootsucker in modelling session
• spreeretail therapy session
• 6-letter words
• seanceSession of spiritualists
• logoutFinish a study session at the library, perhaps
• 7-letter words
• seminarSchool session
• piss-upA heavy-drinking session
• 8-letter words
• booze-upHeavy drinking session
• tutorialTeaching session
• 9-letter words
• pub-crawlDrinking session spread over several bars
• 10-letter words
• photoshoota session in which there's much snapping?
• 11-letter words
• adjournmentInterval in the sessions of a committee or court
• 12-letter words
• liquid-lunchMidday drinking session