Oddball (6)

'oddball' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for weirdo that I've seen before include "Unpleasantly strange or eccentric person" , "Crank - oddball" , "Strange person (colloq.)" , "Informally eccentric person - sounds spooky" , "Eccentric type" .)
'oddball' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for kook that I've seen before include "US weirdo" , "Crazy" , "Palindrome for eccentric person - in America" , "Eccentric person (sl.)" .)
'oddball' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for eccentric that I've seen before include "Odd person is off-centre" , "Unconventional and slightly strange" , "Quirky" , "Unconventional or unusual" , "Given to odd behaviour" .)
'oddball' is the definition.
(nut is a kind of oddball)
This is all the clue.
(Other definitions for nut that I've seen before include "Hard fruit; obsessive" , "1A [CRACKPOT]?" , "Hard kernel of minutiae" , "Bonce" , "Hard-cased fruit" .)
'oddball' is the definition.
(crackpot is a kind of oddball)
This is all the clue.
(Other definitions for crackpot that I've seen before include "Eccentric; impractical" , "Crank" , "Harebrained type" , "Odd" , "Fruitcake, screwball" .)