Lithe acts, possibly (9)
I believe the answer is:
athletics
'lithe acts possibly' is the definition.
I can't tell whether this definition defines the answer.
'lithe acts possibly' is the wordplay.
'possibly' is an anagram indicator.
'lithe'+'acts'='litheacts'
'litheacts' is an anagram of 'ATHLETICS'.
Can you help me to learn more?
(Other definitions for athletics that I've seen before include "Track and field sports" , "Lithe acts (anag)" , "Track and field events" , "Sports -- cheat list (anag)" , "Lithe acts observed in sporting contests" .)