Bob shortly cut up section of dress (6)
I believe the answer is:
bodice
'section of dress' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'bob shortly cut up' is the wordplay.
'shortly' means to remove the last letter.
'cut up' becomes 'dice' (dice can mean to cut into cubes).
'bob' with its final letter taken off is 'bo'.
'bo'+'dice'='BODICE'
Can you help me to learn more?
(Other definitions for bodice that I've seen before include "Top part of a dress" , "Upper half of dress" , "Basque" , "Historical novel with lots of passion" , "Stays" .)