Wound dressing around injured fibrous tissue (8)
I believe the answer is:
ligament
'fibrous tissue' is the definition.
(ligament is a kind of fibrous tissue)
'wound dressing around injured' is the wordplay.
'wound dressing' becomes 'lint' (I've seen this before).
'around' means one lot of letters goes inside another.
'injured' becomes 'game' (I can't justify this - if you can you should give a lot more credence to this answer).
'lint' going around 'game' is 'LIGAMENT'.
Can you help me to learn more?
(Other definitions for ligament that I've seen before include "Fibrous connective tissue" , "Tissue which joins bones" , "What may get torn" , "Joint connector" , "sheet of tissue" .)