The mated pair will "nibble" at/in the same spot where the eggs will be laid and then fertelized by the male. If they are doing this, keep tabs on that area and you will soon see some small nodes much like orange pieces of rice.
If you don't see something within the next week or so, be watchful the clowns bellly does not return to normal. Clowns are notoriuos for bloating, especially if only fed an all meat diet.
Cheers
Steve