Scotsman includes joke on Indian royal (8)
I believe the answer is:
majestic
'royal' is the definition.
(synonyms)
'scotsman includes joke on indian' is the wordplay.
I cannot really understand how this works, but
'joke' could be 'jest' (synonyms) and 'jest' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for majestic that I've seen before include "Regal - stately" , "'Regal, royal (8)'" , "Regal - grand" , "Of noble bearing, like a king" , "Grand, impressive" .)