Jeer disheartened thespians for kicks? (5)
I believe the answer is:
boots
'kicks?' is the definition.
('boot' can be a synonym of 'kick')
'jeer disheartened thespians' is the wordplay.
'jeer' becomes 'boo' (I've seen this before).
'disheartened' says to hollow out the word (remove centre letters) (the middle or heart is removed).
'thespians' with its middle taken out is 'ts'.
'boo'+'ts'='BOOTS'
'for' acts as a link.
(Other definitions for boots that I've seen before include "shoe cleaner" , "Kicks" , "Footwear" .)