Bad mushroom trip's beginning in a frenzy (7)
I believe the answer is:
amanita
'bad mushroom' is the definition.
'amanita' can be an answer for 'mushroom' (I've seen this in another clue). I am not sure about the 'bad' bit.
'trip's beginning in a frenzy' is the wordplay.
'beginning' indicates taking the first letters.
'in' means one lot of letters goes inside another.
'frenzy' becomes 'mania' (I've seen this before).
The first letter of 'trips' is 't'.
'a'+'mania'='amania'
't' put within 'amania' is 'AMANITA'.
Can you help me to learn more?
(Other definitions for amanita that I've seen before include "Mushroom genus" , "Variety of mushroom" , "fungus that could be deadly" , "Poisonous mushroom" , "Genus of mushrooms" .)