Pasty, at an appropriate time, and whiskey to go (5)
I believe the answer is:
ashen
'pasty' is the definition.
(both can mean pale)
'an appropriate time and whiskey to go' is the wordplay.
I cannot really see how this works, but
'an' could be 'a' and 'a' is found in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found in the answer.
The remaining letters 'she' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'at' acts as a link.
Can you help me to learn more?
(Other definitions for ashen that I've seen before include "Bloodless" , "showing signs of anaemia" , "Deathly pale" , "Grey-faced" , "So vampire might appear" .)