Leaders in Dar es Salaam — very small lot (7)
I believe the answer is:
destiny
'lot' is the definition.
(lot as in a person's luck)
'leaders in dar es salaam very small' is the wordplay.
'leaders in' says to take the initial letters.
'very small' becomes 'tiny' (I've seen this in another clue).
The initial letters of 'dar es salaam' is 'des'.
'des'+'tiny'='DESTINY'
(Other definitions for destiny that I've seen before include "The future as arranged by fate" , "Ultimate fate" , "Lot" , "must?" , "Kismet, fate" .)