Section of hose clip secures sunshade? (7)
I believe the answer is:
eclipse
'sunshade?' is the definition.
(astronomical event where the sun is blocked)
'section of hose clip secures' is the wordplay.
'section of' says the answer is hidden in the clue.
'ECLIPSE' can be found hidden inside 'hose clip secures'.
(Other definitions for eclipse that I've seen before include "period of darkness" , "Obscuring of a heavenly body" , "Celestial obscuration of light" , "Momentary disappearance of heavenly body" , "Lunar/solar phenomenon" .)