Part of body and part of that sport (8)
I believe the answer is:
football
'that sport' is the definition.
(football is a kind of sport)
'part of body and part of' is the wordplay.
'part' is an anagram indicator (I've seen 'parts of' mean this).
'body' becomes 'tball' (I can't justify this - if you can you should believe this answer much more).
'and' says to put letters next to each other.
'part' says to take the initial letters.
The initial letter of 'of' is 'o'.
'of' is an anagram of 'fo'.
'tball' after 'o' is 'otball'.
'fo'+'otball'='FOOTBALL'
Can you help me to learn more?
(Other definitions for football that I've seen before include "Gambling on soccer results" , "Lob aloft (anag)" , "Lob aloft poorly for this game" , "Strange ballot of the game" , "Liverpool or Everton, for example" .)