Actress Gloria comes to Gateshead to make final appearance (4,4)
I believe the answer is:
swan song
'final appearance' is the definition.
(I've seen this before)
'actress gloria comes to gateshead' is the wordplay.
I cannot quite see how this works, but
'actress' could be 'swanson' (I've seen this before) and 'swanson' is located in the answer.
'gateshead' could be 'g' (head letter of 'gates') and 'g' is found within the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'to make' acts as a link.
Can you help me to learn more?
(Other definitions for swan song that I've seen before include "Last performance of a career" , "Final work or performance" , "Musician's final appearance" , "A dying performance" , "Last act before death, like noble white bird" .)