Headless toy that spins (4)
I believe the answer is:
eddy
'that spins' is the definition.
I can't tell whether this definition defines the answer.
'headless toy' is the wordplay.
'headless' means to remove the first letter.
'toy' becomes 'teddy' (teddy is a kind of toy).
'teddy' with its initial letter removed is 'EDDY'.
Can you help me to learn more?
(Other definitions for eddy that I've seen before include "Twist" , "Man" , "Current running against the main stream, causes small whirlpool" , "Whirlwind" , "Small circular movement of water" .)