It can also be played upside down (5)
I believe the answer is:
strad
'it can also be played upside down' is the definition.
I know nothing about this answer so I can't judge whether this works.
'it can also be played upside down' is the wordplay.
I cannot quite see how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found in the answer.
'down' could be 'd' and 'd' is present in the answer.
The remaining letters 'sra' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for strad that I've seen before include "that Grappelli could have played" , "fiddle exposed" , "Famous violin" , "Valuable violin (abbrev.)" , "Top-quality violin (abbr.)" .)