Work on hand, one caught between stools? (8)
I believe the answer is:
manicure
'work on hand' is the definition.
(cosmetic work on one's hands)
'one caught between stools?' is the wordplay.
'one' becomes 'i' (Roman numeral).
'caught' becomes 'c' (cricket abbreviation).
'between' is an insertion indicator.
'stools?' becomes 'manure' (manure is stools or excrement from animals).
'i'+'c'='ic'
'ic' going inside 'manure' is 'MANICURE'.
(Other definitions for manicure that I've seen before include "Cosmetic treatment for the hands" , "A numeric approach to care of the hands" , "Cosmetic nail treatment" , "Cosmetic care of the hands" , "Hands/nails treatment" .)