An eccentric type is someone who is considered to be unusual or quirky in their behavior. The crossword solutions for this term are FLAKE (5 letters), GEEZER (6 letters), and Oddduck (7 letters). FLAKE is a slang term used to describe someone who is unreliable or unpredictable. GEEZER is a slang term used to describe an elderly person, often with a negative connotation. Oddduck is a slang term used to describe someone who is strange or different from the norm. All three of these terms can be used to describe an eccentric type.