### Clue: A ring with timelessness (8)
### Answer: ETERNITY 
 ### Explanation: Definition: A ring with timelessness
  Cryptic defn(?): A type of ring as a token of lasting affection.  In case you're not aware, and in case your dear wife says she'd like one, the picture shows what you're in for (hopefully not lasting debt 🙂 ).  The continuous, never-ending band of stones is meant to symbolise timelessness – not hard to see who's promoting that!
Or it could be a double defn.(?)