Resentment with stock market debut — large one — in part of Turkey (9)
I believe the answer is:
gallipoli
'part of turkey' is the definition.
(I've seen this before)
'resentment with stock market debut large one' is the wordplay.
'resentment' becomes 'gall' (synonyms).
'with stock market debut' becomes 'ipo' (I can't explain this - if you can you should give a lot more credence to this answer).
'large' becomes 'L' (eg in clothes sizes).
'one' becomes 'i' (Roman numeral).
'gall'+'ipo'+'l'+'i'='GALLIPOLI'
'in' is the link.
Can you help me to learn more?
(Other definitions for gallipoli that I've seen before include "Turkish scene of World War One landing" , "military invasion" , "Scene of WW2 landing in 1915" , "Turkish peninsula - scene of WWI campaign" , "old war-zone" .)