Alarms the leads in The Lady Eve surrounded by celebrities (8)
I believe the answer is:
startles
'alarms' is the definition.
(I've seen this before)
'the leads in the lady eve surrounded by celebrities' is the wordplay.
'the leads in' indicates taking the first letters (I've seen 'lead in' mean this).
'surrounded by' means one lot of letters goes inside another.
'celebrities' becomes 'stars' (I've seen this in other clues).
The first letters of 'the lady eve' is 'tle'.
'tle' inserted inside 'stars' is 'STARTLES'.
(Other definitions for startles that I've seen before include "Shocks from starlets" , "Frightens suddenly" , "Causes to feel sudden alarm" , "Takes by surprise, alarms" .)