Strange little pouch previously in wedge-shaped backbone (6)
I believe the answer is:
sacrum
'wedge-shaped backbone' is the definition.
The answer and definition can be both body parts as well as being singular nouns.
Maybe there's a link between them I don't understand?
'strange little pouch previously' is the wordplay.
'strange' becomes 'rum' (similar in meaning).
'little pouch' becomes 'sac' (I've seen this in another clue).
'previously' is a charade indicator (letters next to each other).
'rum' after 'sac' is 'SACRUM'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for sacrum that I've seen before include "Bone in the lower back" , "Triangular bone forming back of pelvis" , "Triangular bone that forms back of pelvis" , "Wedge-shaped bone forming the back part of the pelvis" .)