Possible Clues:

• Defenceless dragonfly, say, losing tail by river
• Lacking confidence in organising rescue
• Not safe or confident in oneself
• Not adequately protected, getting cover outside City
• Lacking confidence, arrange cover for crossing City
• Guarantee about European Commission is shaky
• Nervous about sinecure
• Head drops a bit, as cushy job becomes uncertain
• Even though it's not safe, it may make one well in the end
• Unsafe in dry river