Hardy girl just starting to embody essence of Geordie Shore (8)
I believe the answer is:
buttress
'shore' is the definition.
(thesaurus)
'hardy girl just starting to embody essence of geordie' is the wordplay.
'hardy girl' becomes 'Tess' (in Tess of the d'Urbervilles, Thomas Hardy novel).
'just' becomes 'but' (but can mean 'just' or 'only').
'starting' says to put letters next to each other.
'to embody' is an insertion indicator.
'essence of' means to look at the middle letters.
The middle letter of 'geordie' is 'r'.
'tess' after 'but' is 'buttess'.
'buttess' placed around 'r' is 'BUTTRESS'.
(Other definitions for buttress that I've seen before include "She-goat" , "Supporting structure" , "Projecting support for wall" , "Stone support" , "Projecting support for building" .)