For example, going back outside, you and I, I say, left with insidious cunning (5)
I believe the answer is:
guile
'cunning' is the definition.
(I know that cunning can be written as guile)
'for example going back outside you and i i say left with insidious' is the wordplay.
I cannot quite see how this works, but
'you' could be 'u' (commonly used in online communication) and 'u' is present in the answer.
'i' is within the answer.
'left' could be 'l' (common abbreviation) and 'l' is found within the answer.
The remaining letters 'ge' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for guile that I've seen before include "Artfulness, cunning" , "Cunning, deceit" , "Craftiness" , "Crafty behaviour" , "Deceitful cunning" .)