Catch rising gangster - the one synonymous with The Muscle (6)
I believe the answer is:
tendon
'one synonymous with the muscle' is the definition.
I can't judge whether this definition defines the answer.
'catch rising gangster' is the wordplay.
'catch' becomes 'net' (net can mean to catch).
'rising' says the letters should be written in reverse (going up in a down clue).
'gangster' becomes 'don' (mafia don).
'net' written backwards gives 'ten'.
'ten'+'don'='TENDON'
'the' is the link.
Can you help me to learn more?
(Other definitions for tendon that I've seen before include "Fibrous band" , "Strong tissue cord connecting muscles" , "Sinew, maybe 3" , "Link between bone and muscle" , "Fibrous tissue attaching muscle to bone" .)