It's stimulating to be back in Eric's embrace (6)
I believe the answer is:
erotic
'it's stimulating' is the definition.
(I've seen this before)
'to be back in eric's embrace' is the wordplay.
'be back' is a reversal indicator.
'in' is an insertion indicator.
'eric's embrace' becomes 'eric' (I can't justify this - if you can you should believe this answer much more).
'to' back-to-front is 'ot'.
'ot' placed inside 'eric' is 'EROTIC'.
(Other definitions for erotic that I've seen before include "Amorous" , "Sexually arousing" , "Amatory" , "Loving composition" , "Carnal" .)