Drank a rum after time - not out of this! (7)
I believe the answer is:
tankard
'not out of this' is the definition.
The definition suggests a singular noun which matches the answer.
'drank a rum after time' is the wordplay.
'rum' indicates an anagram (rum can mean strange or unusual).
'after' is a charade indicator (letters next to each other).
'time' becomes 't'.
'drank'+'a'='dranka'
'dranka' anagrammed gives 'ankard'.
'ankard' put after 't' is 'TANKARD'.
Can you help me to learn more?
(Other definitions for tankard that I've seen before include "Vessel tracked" , "Tall beer mug" , "Drinker's pot" , "One-handled beer mug" , "Mug-like drinking vessel" .)