One fleecing old England striker (7)
I believe the answer is:
shearer
'one fleecing old' is the definition.
The definition suggests a singular noun which matches the answer.
'england striker' is the wordplay.
I cannot really see how this works, but
'england' could be 'e' (short for England) and 'e' is located in the answer.
The remaining letters 'sharer' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for shearer that I've seen before include "one who removes coat" , "Wool cutter - ex-England footballer" , "He cuts the fleece from sheep" , "Man clipping sheep" , "One that's fleeced" .)