Titled Turk in Madagascar (3)
I believe the answer is:
aga
'titled turk' is the definition.
(I've seen this in another clue)
'in madagascar' is the wordplay.
'in' says the answer is hidden in the clue.
'AGA' can be found hidden inside 'madagascar'.
(Other definitions for aga that I've seen before include "Captain" , "Muslim title of honour" , "Foreign ruler" , "Stove - Muslim commander" , "Palindromic Turkish commander" .)