Unlimited affection? (4,4)
I believe the answer is:
free love
'unlimited affection?' is the definition.
'free love' can be an answer for 'affection?' (thesaurus). I am unsure of the 'unlimited' bit.
'unlimited affection?' is the wordplay.
'unlimited' becomes 'free' (I can't justify this - if you can you should believe this answer much more).
'affection?' becomes 'love' (affection is a kind of love).
'free'+'love'='FREE LOVE'
Can you help me to learn more?
(Other definitions for free love that I've seen before include "presumably ruling out bondage" , "General Congress" , "Promiscuity" .)