Initially, aged family relative is controlled, almost continent (6)
I believe the answer is:
africa
'continent' is the definition.
(Africa is an example)
'initially aged family relative is controlled almost' is the wordplay.
'initially' indicates taking the first letters.
The initial letters of 'aged family relative is controlled almost' is 'AFRICA'.
(Other definitions for africa that I've seen before include "RAF and CIA strangely together on the continent" , "It stretches from Cairo to the Cape" , "Second largest continent" , "Continent for 21 Down" , "Land of Malawi and Mozambique" .)