Hot place on Earth supported flowering plant (9)
I believe the answer is:
hellebore
'flowering plant' is the definition.
(I've seen this before)
'hot place on earth supported' is the wordplay.
'hot place' becomes 'hell' (I have seen 'Infernal place' mean 'hell' so perhaps 'place' could also mean 'hell'. I am not sure about the 'hot' bit.).
'on' is a charade indicator (letters next to each other).
'earth' becomes 'E'.
'supported' becomes 'bore' (I've seen this in another clue).
'hell'+'e'+'bore'='HELLEBORE'
Can you help me to learn more?
(Other definitions for hellebore that I've seen before include "aconite?" , "Flower of the lily family found in rebel hole" , "In bed I grow" , "Poisonous plant" , "flowering plant" .)