Put in from wing, Batty scored, grabbing second (7)
I believe the answer is:
crossed
'put in from wing batty scored grabbing second' is the definition.
I can't judge whether this defines the answer.
'batty scored grabbing second' is the wordplay.
'batty' indicates anagramming the letters.
'grabbing' means one lot of letters goes inside another.
'second' becomes 's' (common abbreviation).
'scored' anagrammed gives 'crosed'.
'crosed' enclosing 's' is 'CROSSED'.
Can you help me to learn more?
(Other definitions for crossed that I've seen before include "Passed" , "Traversed" , "Intersected; opposed" , "Went over to the other side" , "Came over and < annoyed" .)