Little credit is given twice in an emergency (6)
I believe the answer is:
crisis
'an emergency' is the definition.
(a crisis is an emergency)
'little credit is given twice' is the wordplay.
'little' means to remove the last letter (the word is not quite complete).
'credit' becomes 'cr' (abbreviation).
'given twice' becomes 'sis' (I can't explain this - if you can you should believe this answer much more).
'cr'+'is'='cris'
'cris' with its last letter taken away is 'cri'.
'cri'+'sis'='CRISIS'
'in' is the link.
Can you help me to learn more?
(Other definitions for crisis that I've seen before include "Time of decision or acute danger" , "Climax, breaking point" , "Decisive time, breaking point" , "time of distress" , "Emergency (in midlife?)" .)