Sam crazy about Great Lake Cariamidae bird (7)
I believe the answer is:
seriema
'cariamidae bird' is the definition.
'seriema' can be an answer for 'bird' (seriema is a kind of bird). I'm unsure of the 'cariamidae' bit.
'sam crazy about great lake' is the wordplay.
'crazy' indicates an anagram.
'about' is an insertion indicator.
'great lake' becomes 'erie' (I've seen this in another clue).
'sam' anagrammed gives 'sma'.
'sma' enclosing 'erie' is 'SERIEMA'.
Can you help me to learn more?
(Another definition for seriema that I've seen is " Crane-like S American bird".)