Hands in notice that plastered ingress (7)
I believe the answer is:
resigns
'hands in notice' is the definition.
Although both the answer and definition are verbs in their -s form, I don't understand how one could define the other.
'plastered ingress' is the wordplay.
'plastered' indicates an anagram (plastered can informally mean drunk).
'ingress' with letters rearranged gives 'RESIGNS'.
'that' acts as a link.
Can you help me to learn more?
(Other definitions for resigns that I've seen before include "Leaves job voluntarily" , "does the honourable thing" , "abdicates" , "Gives up (a post)" .)