You can follow the steps below to remove Novation Play from your system.
Windows
To uninstall Novation Play from your Windows computer, you can run the installer found in C:\Program Files\Novation\Play\unins000.exe
Mac
To uninstall Novation Play from your macOS computer, please go to Finder, find these files and drag them to the trash. You can also use Finder > Go To Folder (Shift, CMD, G) to paste these in.
/Library/Audio/Plug-Ins/Components/Play.component
/Library/Audio/Plug-Ins/VST3/Play.vst3
/Library/Audio/Plug-Ins/VST/Play.vst
/Library/Application Support/Avid/Audio/Plug-Ins/Play.aaxplugin
/Library/Application Support/Novation/Play (folder)
~/Library/Application Support/Novation/Play/Play.settings
~/Library/Application Support/Novation/Play (User presets etc)
Once done, empty the trash.