Delay for...? A specific amount of time? Until you manually trigger? After you manually trigger? Something else?
How are you running your Playlist? All Autoplay? Specific songs Autoplay?
Really need more details about what you are doing, and what you want to do, to answer your question accurately.
If I were to take a guess that you have a single song in a playlist (and Playlist is on Autoplay) and just wanted to, say, introduce a 10 sec delay on start of that one song, I would just create a lyric only song (i.e. has no audio) that is 10 sec in duration and insert it before the song you want to delay the start of.