Amber perhaps to stray once again? (5)
I believe the answer is:
resin
'amber' is the definition.
(I've seen this in another clue)
'to stray once again?' is the wordplay.
I cannot really understand how this works, but
'again?' could be 're' (prefix meaning 'again') and 're' is found within the answer.
The remaining letters 'sin' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'perhaps' acts as a link.
Can you help me to learn more?
(Other definitions for resin that I've seen before include "varnish, perhaps" , "Glue" , "Organic polymer used in varnishes, adhesives etc." , "Material exuded from tree" , "Myrrh, for instance" .)