One with the hump caught male out (5)
I believe the answer is:
camel
'one with the hump' is the definition.
(camels have humps)
'caught male out' is the wordplay.
'caught' becomes 'c' (cricket abbreviation**).
'out' is an anagram indicator (out can mean wrong or inaccurate).
'male' is an anagram of 'amel'.
'c'+'amel'='CAMEL'
(Other definitions for camel that I've seen before include "Saddle animal in desert regions" , "Dromedary, perhaps" , "A ship, some say" , "African transport" , "One travelling in caravan" .)