Firstly, eagle drops after cuckoo leaps over the moon (7)
I believe the answer is:
pleased
'over the moon' is the definition.
I can't judge whether this defines the answer.
'firstly eagle drops after cuckoo leaps' is the wordplay.
'firstly' says to take the initial letters.
'after' says to put letters next to each other.
'cuckoo' indicates an anagram (I've seen this in other clues).
The initial letters of 'eagle drops' is 'ed'.
'leaps' is an anagram of 'pleas'.
'ed' after 'pleas' is 'PLEASED'.
Can you help me to learn more?
(Other definitions for pleased that I've seen before include "Well satisfied" , "Gratified" , "Glad" , "like Punch?" , "Grateful, delighted" .)