Crossword Genius

Penny drops - it concealed hidden dangers (8)

Ross

I believe the answer is:

pitfalls

'hidden dangers' is the definition.
(I've seen this before)

'penny drops it concealed' is the wordplay.
'penny' becomes 'p' (short for pence).
'drops' becomes 'falls' ('fall' can be a synonym of 'drop').
'concealed' indicates putting letters inside.
'p'+'falls'='pfalls'
'pfalls' enclosing 'it' is 'PITFALLS'.

(Other definitions for pitfalls that I've seen before include "Unsuspected dangers or difficulties - for miners?" , "Catches" , "Lifts pal from unexpected difficulties or dangers" , "Hidden dangers, booby traps." .)

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