Fruit bats entering holding area (9)
I believe the answer is:
tangerine
'fruit' is the definition.
(tangerine is a kind of fruit)
'bats entering holding area' is the wordplay.
'bats' indicates anagramming the letters (I've seen this in other clues).
'holding' indicates putting letters inside.
'area' becomes 'a' (maths abbreviation).
'entering' is an anagram of 'tngerine'.
'tngerine' going around 'a' is 'TANGERINE'.
(Other definitions for tangerine that I've seen before include "Tree" , "fruit product" , "Small orange" , "Small orange-like fruit (from North Africa?)" , "Taste" .)