Left out, to hang loosely by river in jeopardy (6)

I believe the answer is:

danger

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

'left out to hang loosely by river' is the wordplay.
'left' becomes 'l' (common abbreviation).
'out' suggests deleting specific letters.
'to hang loosely' becomes 'dangle' (I've seen this before).
'by river' becomes 'r' (I am not sure about the 'by' bit.).
'dangle' with 'l' removed is 'dange'.
'dange'+'r'='DANGER'

'in' is the link.

Can you help me to learn more?

(Other definitions for danger that I've seen before include "Red flag, for example" , "'Peril, risk (6)'" , "Peril, jeopardy" , "Menace" , "Peril, hazard" .)

I've seen this clue in The Hindu.

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