Reflection of some skirtlike garment (4)
I believe the answer is:
kilt
'garment' is the definition.
(kilt is a kind of garment)
'reflection of some skirtlike' is the wordplay.
'reflection of' says the letters should be written in reverse (I've seen 'reflection' mean this).
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'tlik' can be found hidden inside 'skirtlike'.
'tlik' back-to-front is 'KILT'.
(Other definitions for kilt that I've seen before include "Pleated tartan skirt" , "Scotsman's attire" , "Scottish costume" , "Checked menswear" , "Bone; circle line" .)