One essential piece to Jimmy White's stick (6)
I believe the answer is:
impale
'stick' is the definition.
(I've seen this before)
'one essential piece to jimmy white's' is the wordplay.
I cannot quite understand how this works, but
'one' could be 'i' (Roman numeral) and 'i' is present in the answer.
'piece' could be 'p' (abbreviation for Pawn) and 'p' is present in the answer.
The remaining letters 'male' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for impale that I've seen before include "Transfix, pierce (with a sharp instrument)" , "Spike" , "Kill by piercing with a sharp stake" , "Run through with stake" , "Fix as on a sharp stick" .)