First-class spinner having fine match (3-6)
I believe the answer is:
top-flight
'first-class' is the definition.
(I've seen this before)
'spinner having fine match' is the wordplay.
'spinner' becomes 'top' (a spinning top).
'having' means one lot of letters go next to another.
'fine' becomes 'f' (abbreviation).
'match' becomes 'light' (light can mean a flame or match).
'top'+'f'+'light'='TOP-FLIGHT'
(Other definitions for top-flight that I've seen before include "Highest level" , "Of the highest class" , "Superior" , "Excellent -- best possible" .)