Orchestra deleted part of English singer (5)
I believe the answer is:
adele
'english singer' is the definition.
'orchestra deleted part' is the wordplay.
'part' indicates the answer is hidden within the clue.
'ADELE' is hidden within 'orchestra deleted'.
'of' acts as a link.
(Other definitions for adele that I've seen before include "Performer" , "Female English singer-songwriter, b. 1988" , "Singer with albums titled 19, 21 and 25" , "girl" , "Popular female singer" .)