The bear in Swinburne's puzzling piece (5)
I believe the answer is:
bruin
'the bear' is the definition.
(bruin is a kind of bear)
'in swinburne's puzzling piece' is the wordplay.
I cannot quite see how this works, but
'in' is found in the answer.
'piece' could be 'r' (abbreviation for Rook) and 'r' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for bruin that I've seen before include "Archetypal name for a bear" , "Conventional name for a bear" .)