Change of ends for rowing crew in late shift (7)

I believe the answer is:
nightie
'change of ends for rowing crew' is the definition.
I can't judge whether this definition defines the answer.
'late shift' is the wordplay.
'late' becomes 'night' (I've seen this before).
'shift' becomes 'ie' (I can't explain this - if you can you should believe this answer much more).
'night'+'ie'='NIGHTIE'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for nightie that I've seen before include "Woman's bedwear" , "Sleepwear" , "Loose dress worn in bed" , "Loose garment" , "What retiring lady assumes" .)
