Q: Cloud icon showing up but song is on my hard drive, why ?

I have iTunes12 running on an iMac.

I have several songs in my library that are displayed with a cloud icon next to them when in fact they are located only hard drive - why ?

This was discovered when i was trying to drag-and-drop some songs from my library onto an iPod - when i tried, a message popped up and said the song was only available in iCloud and that I must download it before I can copy it to my iPod !?!?!

2 questions :

[1] The song already exists locally on my hard drive - how do i correct this ?

[2] To correct the issue for my entire library, is there a way to "re-index" my current hard-drive iTunes library to get rid of this issue for all the songs that have clouds next to them ?

Thx,

BobZ