Cut off in middle of Fleet Street having called journalist (9)
I believe the answer is:
estranged
'cut off' is the definition.
(I've seen this before)
'middle of fleet street having called journalist' is the wordplay.
'middle of' indicates the central letters.
'street' becomes 'st' (abbreviation).
'having' is a charade indicator (letters next to each other).
'called' becomes 'rang' (called on the phone).
'journalist' becomes 'ed' (short for editor).
The centre of 'fleet' is 'e'.
'e'+'st'+'rang'+'ed'='ESTRANGED'
'in' is the link.
(Other definitions for estranged that I've seen before include "Sad regent (anag) - disaffected" , "no longer friendly" , "Cut off" , "Having become unfriendly or alienated" , "A nerd gets (anag) - separated" .)