Operator conceals erotic inspiration (5)

I believe the answer is:

erato

I'm a little stuck... Click here to teach me more about this clue!

'erotic inspiration' is the definition.
'Erato' can be an answer for 'inspiration' (one of the muses in Greek mythology). I am not sure about the 'erotic' bit.

'operator conceals' is the wordplay.
'conceals' says the answer is hidden in the clue.
'ERATO' can be found hidden inside 'operator'.

Can you help me to learn more?

(Other definitions for erato that I've seen before include "Muse of lyric poetry and mime" , "goddess" , "poetic patroness" , "One of nine" , "Clio's sister" .)

I've seen this clue in The Independent.

Want a hint initially instead of a full solution? Install my app