Fearsomely large creature in gym -- on steroids (7)
I believe the answer is:
monster
'fearsomely large creature' is the definition.
'monster' can be an answer for 'creature' (I have seen 'Hideous animal ' mean 'monster' so perhaps 'animal' could also mean 'monster'). I'm unsure of the 'fearsomely large' bit.
'in gym on steroids' is the wordplay.
'in' indicates the answer is hidden within the clue.
'MONSTER' can be found hidden inside 'gym on steroids'.
Can you help me to learn more?
(Other definitions for monster that I've seen before include "Something abnormally large and powerful" , "Strange mentors for the imaginary creature" , "Vile creature" , "Frightening creature of folklore" , "Hideous animal" .)