Police team check sample (6)
I believe the answer is:
swatch
'sample' is the definition.
(I have seen 'Sample of cloth' mean 'swatch' so perhaps 'sample' could also mean 'swatch')
'police team check' is the wordplay.
'police team' becomes 'swat' (I've seen this in another clue).
'check' becomes 'ch' (abbreviation).
'swat'+'ch'='SWATCH'
(Other definitions for swatch that I've seen before include "Sample of fabric" , "Samples" , "Sample piece of cloth or other material" , "Model" , "Sample book" .)