Former PM, heading away from Haifa, perhaps (7)
I believe the answer is:
israeli
'haifa perhaps' is the definition.
I can't tell whether this definition defines the answer.
'former pm heading away' is the wordplay.
'former pm' becomes 'disraeli' (Victorian prime minister Benjamin Disraeli).
'heading away' means to remove the first letter (the word's 'head' is removed).
'disraeli' with its first letter taken off is 'ISRAELI'.
'from' acts as a link.
Can you help me to learn more?
(Other definitions for israeli that I've seen before include "Inhabitant of a Mediterranean republic" , "race with Ben-Gurion" , "Sharon for example" , "From Jaffa, say?" , "Levantine" .)