One must approach a bull in lust or eroticism (6)
I believe the answer is:
torero
'one must approach a bull' is the definition.
I know that 'bull' relates to this answer.
'in lust or eroticism' is the wordplay.
'in' indicates a hidden word.
'TORERO' is hidden in the letters of 'lust or eroticism'.
Can you help me to learn more?
(Other definitions for torero that I've seen before include "Bullring occupant" , "hero in the ring" , "Blood-sport participant" , "Spanish fighter" , "Spaniard in ring" .)