Delete MQTT Entities

Hi,
I was testing out some integrations for managing a Windows PC. I started with IoT Link but wound up going with HASS.Agent. I still have all of the MQTT entities related IoT Link and I can’t figure out how to delete them. Other posts I’ve found about this question didn’t have enough detail for me to figure out exactly how to do this.
I looked in MQTT Explorer but didn’t see any way to delete entities.
Could someone assist with some detailed steps?
Thank you

MQTT Explorer. Hover over the topic, and select the garbage bin.

Thanks, I was able to delete the IoT Link topics but the devices and entities still appear in HA. I tried a restart but still no luck.