Mean to prick the end of pinky (6)
I believe the answer is:
stingy
'mean' is the definition.
(both can mean miserly)
'prick the end of pinky' is the wordplay.
'prick' becomes 'sting' (synonyms).
'the end of' suggests the final letters.
The final letter of 'pinky' is 'y'.
'sting'+'y'='STINGY'
'to' is the link.
(Other definitions for stingy that I've seen before include "Close" , "reluctant to spend money" , "Wasps are" , "Mean and grudging" , "Tight-fisted, like 25 and 22 Across" .)