Yes -- worried about call for needle! (7)
I believe the answer is:
syringe
'needle' is the definition.
(thesaurus)
'yes worried about call' is the wordplay.
'worried' is an anagram indicator.
'about' indicates putting letters inside.
'call' becomes 'ring' ('ring' can be a synonym of 'call'**).
'yes' anagrammed gives 'sye'.
'sye' placed around 'ring' is 'SYRINGE'.
'for' acts as a link.
(Other definitions for syringe that I've seen before include "Injector" , "Implement to inject or withdraw fluid" , "Liquid-injecting device" , "Instrument to inject or withdraw fluid" , "Device for giving injections" .)