Harpo tied perhaps to love goddess (9)
I believe the answer is:
aphrodite
'love goddess' is the definition.
(I've seen this before)
'harpo tied perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'harpo'+'tied'='harpotied'
'harpotied' is an anagram of 'APHRODITE'.
'to' acts as a link.
(Other definitions for aphrodite that I've seen before include "Sex goddess" , "Greek goddess of love, like Rome's Venus" , "Atrophied like Greek goddess of love" , "Greek goddess of love, like Roman Venus" , "Greek goddess equivalent to Roman Venus" .)