Grip both sides of high antique (8)
I believe the answer is:
handhold
'grip' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'both sides of high antique' is the wordplay.
'both sides of' becomes 'hand' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'high' becomes 'h' (abbreviation).
'antique' becomes 'old' (similar in meaning).
'hand'+'h'+'old'='HANDHOLD'
Can you help me to learn more?
(Other definitions for handhold that I've seen before include "A place where you can get a grip" , "Something to grip" .)