Standing outside “The Goat’s Head,” Peter is worried (8)
I believe the answer is:
prestige
'standing' is the definition.
(prestige is a kind of standing)
'outside the goat's head peter is worried' is the wordplay.
'outside' indicates putting letters inside.
'head' says to take the initial letters.
'worried' indicates anagramming the letters.
The first letter of 'goats' is 'g'.
'peter'+'is'='peteris'
'peteris' with letters rearranged gives 'prestie'.
'g' going into 'prestie' is 'PRESTIGE'.
(Other definitions for prestige that I've seen before include "High standing, influence" , "It's good standing" , "Widespread respect attracted through achievements" , "[GLAMOUR]" , "Reputation based on achievements" .)