Cold boy getting dressed (4)
I believe the answer is:
clad
'dressed' is the definition.
('clothe' can be a synonym of 'dress')
'cold boy getting' is the wordplay.
'cold' becomes 'c' (eg on taps).
'boy' becomes 'lad' (lad is a kind of boy**).
'getting' means one lot of letters go next to another.
'c'+'lad'='CLAD'
(Other definitions for clad that I've seen before include "Provided with covering" , "Wearing" , "Invested" , "Decked" , "Clothed, covered" .)