4773 - Cheesy

[NobleRoman]

Got all entries and unclued and 2 of the types but cannot see a third one. Is there a final pun/trick here

[ProfessorMaisie]

I think the wording in the preamble - 'letters' suggests you look beyond the cells in the grid for the last one.

[NobleRoman]

Thank you - that really is sneaky to say the least

[ProfessorMaisie]

J wasn't describing the 3 types we're highlighting - they were unknown to him and everybody else at the time - personally, I would have preferred 3 squawks (but I found only one hoot!).