Sport without its second type (4)
I believe the answer is:
sort
'type' is the definition.
(both can mean a kind or variety)
'sport without its second' is the wordplay.
I cannot really understand how this works, but
'second' could be 's' (common abbreviation) and 's' is located in the answer.
The remaining letters 'ort' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for sort that I've seen before include "The kind to categorise" , "'Variety, type (4)'" , "Put in order" , "Arrange systematically" , "fashion" .)