Majestic king, for example Albert (5)
I believe the answer is:
regal
'majestic' is the definition.
(I know that majestic can be written as regal)
'king for example albert' is the wordplay.
'king' becomes 'R' (abbreviation for rex, king in Latin).
'for example' becomes 'e.g.' (short for 'exempli gratia', 'for example' in Latin).
'albert' becomes 'al'.
'r'+'eg'+'al'='REGAL'
(Other definitions for regal that I've seen before include "Fit for a monarch" , "Imperial, majestic" , "'Majestic, royal (5)'" , "befitting a king" , "Magnificent, dignified" .)