HAPPY HALLOWEEN!

Hello, it's me, again today,

With some new clues for us to play.

When hikers go hiking during Halloween,

There's always a cool thing, a little green.

So here are some letter for you to know,

And sit back, relax, and enjoy the show.

• MDGOT
• YHTSMTMM
• APSIAPE
• YGWYPF
• YGAPMAFAYFHFADYTHTFAYGHAOTWFHFAL

What is the answer?

Hints:

• Only the third line of the poem is helpful. The rest is fluff/herring.

• Look at the tags!