Gems on person's garment ripped in rumpy pumpy? (6)
I believe the answer is:
bodice
'garment ripped in rumpy pumpy?' is the definition.
(bodice-ripping: sexually explicit in novels)
'gems on person's' is the wordplay.
'gems' becomes 'ice' (ice is slang for diamonds).
'on' says to put letters next to each other.
'person' becomes 'bod' (I've seen this in other clues).
'ice' put after 'bod' is 'BODICE'.
(Other definitions for bodice that I've seen before include "Upper part of woman's dress" , "Tight clothing" , "Top part of a dress" , "which envelops the breast" , "Stays" .)