Capital put up after Turkey's quake (6)
I believe the answer is:
tremor
'quake' is the definition.
('tremor' can be a synonym of 'quake')
'capital put up after turkey's' is the wordplay.
'capital' becomes 'rome' (Rome is an example).
'put up' shows that the letters should be reversed in order.
'after' says to put letters next to each other.
'turkey' becomes 'tr' (I've seen this in other clues).
'rome' backwards is 'emor'.
'emor' put after 'tr' is 'TREMOR'.
(Other definitions for tremor that I've seen before include "Vibration - shaking" , "Small quake" , "Slight earthquake" , "Involuntary quiver" , "Bit of excitement" .)