Enjoy something being a number (5)
I believe the answer is:
digit
'being a number' is the definition.
(I've seen this before)
'enjoy something' is the wordplay.
'enjoy' becomes 'dig' (to dig can mean to appreciate or 'get').
'something' becomes 'it' (I've seen this in other clues).
'dig'+'it'='DIGIT'
(Other definitions for digit that I've seen before include "Single number" , "using 0 or 1 for example" , "Single numeral" , "A character" , "Finger; numeral" .)