Crossword Genius

Reprimand impostor putting on front (3,5)

Ross

I believe the answer is:

for shame

I'm a little stuck... Click here to teach me more about this clue!

'reprimand' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'impostor putting on front' is the wordplay.
'impostor' becomes 'sham' (synonyms).
'putting on' indicates putting letters inside (some letters wear or 'put on' others).
'front' becomes 'fore' (associated in meaning).
'sham' put within 'fore' is 'FOR SHAME'.

Can you help me to learn more?

I've seen this clue in The Independent.
Want a hint initially instead of a full solution? Install my app