The term 'grandstander' is a person who seeks attention or admiration by making a show of their abilities or knowledge. The crossword solutions for this term are 'SHOWOFF' (7 letters), 'HAM' (3 letters), and 'SMARTY' (6 letters). SHOWOFF is a person who behaves in an ostentatious manner in order to attract attention, while HAM is an actor who overacts or exaggerates their performance. SMARTY is a person who is excessively proud of their intelligence or cleverness. All three words describe someone who is trying to draw attention to themselves, which is the definition of a grandstander.