Evergreen tree somehow hides each stage performer (4-5)
I believe the answer is:
fire-eater
'stage performer' is the definition.
(fire-eater is a type of stage performer)
'evergreen tree somehow hides each' is the wordplay.
'evergreen' becomes 'fir' (I've seen this in another clue).
'somehow' indicates an anagram.
'hides' indicates putting letters inside.
'each' becomes 'ea' (abbreviation).
'tree' with letters rearranged gives 'eter'.
'eter' going around 'ea' is 'eeater'.
'fir'+'eeater'='FIRE-EATER'
(Other definitions for fire-eater that I've seen before include "A hot-headed performer?" , "One partaking of something very hot!" , "Entertainer on a diet of flames?" , "One whose lunch is very hot!" , "A belligerent flame-swallower?" .)