Disgruntled Russian leader enters without clothes (6)
I believe the answer is:
narked
'disgruntled' is the definition.
The answer and definition are different parts of speech. However, adjectives and past participle verbs can sometimes mean the same thing.
'russian leader enters without clothes' is the wordplay.
'leader' says to take the initial letters.
'enters' is an insertion indicator.
'without clothes' becomes 'naked' (I've seen this before).
The initial letter of 'russian' is 'r'.
'r' inserted into 'naked' is 'NARKED'.
Can you help me to learn more?
(Other definitions for narked that I've seen before include "'Vexed, riled (6)'" , "Angry" , "Cross" , "Annoyed (informal)" , "Annoyed - upset - irritated" .)