Crossword Genius

Somewhat difficult mess engulfing River Police officer (7)

Ross

I believe the answer is:

hardish

'somewhat difficult' is the definition.

'mess engulfing river police officer' is the wordplay.
'mess' becomes 'hash' (I've seen this before).
'engulfing' indicates putting letters inside.
'river' becomes 'r'.
'police officer' becomes 'di' (detective inspector).
'r'+'di'='rdi'
'hash' placed around 'rdi' is 'HARDISH'.

I've seen this clue in The Telegraph.
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