It's unlikely your clown has ever seen a Condy anemone before. One is from the South Pacific and the other is from the Caribbean. But the clown should get comfortable with the condy over a couple of weeks if it isn't already. Mine only took about 5 days.
The anemone will do best if it gets good light, but you didn't say what kind you have (or how deep your tank is).
You have algae growing off the top of you rocks. That could become a problem. I don't see any clean up crew (snails, hermit carbs, algae eating fish like a lawn mower blenny).
If there is only the one fish, don't over feed it, that will just make the algae grow faster.
The anemone can get by without being fed. Like most aquarium corals it has zooxanthellae (algae) that lives inside it's body and helps fed the anemone by producing sugar and other chemicals when it does photosynthesis. But giving the anemone a small piece of meaty food every 2 to 4 weeks isn't a bad idea. Also condys are known to wander at times, looking for a new home. I had one that after more than a year in one spot, picked up and did 2 laps around the tank (mostly on the glass) over 10 days and ended up in the same place it started!
Good luck.