Pulls back, perhaps, using right elbow, beginning to show good grip (10)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
retraction
'pulls back perhaps using right elbow beginning' is the definition.
I can't tell whether this definition defines the answer.
'show good grip' is the wordplay.
'show good' becomes 're' (I can't justify this - if you can you should give a lot more credence to this answer).
'grip' becomes 'traction' (synonyms).
're'+'traction'='RETRACTION'
'to' acts as a link.
Can you help me to learn more?
(Another definition for retraction that I've seen is " Withdrawal of a statement".)