Erasmus dressed as Rubber Man? (7)
I believe the answer is:
masseur
'rubber man?' is the definition.
'masseur' can be an answer for 'rubber' (I've seen this before). I am unsure of the 'man?' bit.
'erasmus dressed' is the wordplay.
'dressed' indicates an anagram ('dress' can mean 'prepare').
'erasmus' is an anagram of 'MASSEUR'.
'as' is the link.
Can you help me to learn more?
(Other definitions for masseur that I've seen before include "One easing tension" , "One providing soothing treatment" , "One who kneads bodies" , "With prearranged postage" , "One working in parlour" .)