Turkish leader elected for a second time (5)
I believe the answer is:
again
'second time' is the definition.
(I've seen this before)
'turkish leader elected' is the wordplay.
'turkish leader' becomes 'aga' (I've seen this in another clue).
'elected' becomes 'in' (in government).
'aga'+'in'='AGAIN'
'for a' is the link.
(Other definitions for again that I've seen before include "'Another time, once more (5)'" , "Ocne more" , "repeat order" , "One more time, encore" , "Repeatedly" .)