Elected, given ample time for U-turn as necessary (8)
I believe the answer is:
integral
'necessary' is the definition.
(I've seen this before)
'elected given ample time for u-turn as' is the wordplay.
I cannot really see how this works, but
'elected' could be 'in' (in government) and 'in' is located in the answer.
'time' could be 't' (abbreviation) and 't' is found within the answer.
'as' could be 'eg' ('as' and 'e.g.' can both mean for example) and 'eg' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for integral that I've seen before include "form whole" , "contributing to unity" , "Altering so as to be necessary to the whole" , "Belonging as an essential part" , "Formed of constituent parts" .)