A scrap of shelter from the wind at half time (5)
I believe the answer is:
melee
'a scrap' is the definition.
(I've seen this in another clue)
'shelter from the wind at half time' is the wordplay.
'shelter from the wind' becomes 'lee' (I am not sure about this - if you are sure you should believe this answer much more).
'at' means one lot of letters go next to another (I've seen this in other clues).
'half' indicates taking half.
'time' with half the letters taken is 'me'.
'lee' put after 'me' is 'MELEE'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for melee that I've seen before include "Affray; muddled group" , "Fracas" , "Confused crowd" , "confused group" , "Scrap" .)