No tram arranged for senior nurse (6)
I believe the answer is:
matron
'senior nurse' is the definition.
(I've seen this before)
'no tram arranged' is the wordplay.
'arranged' indicates anagramming the letters (letters rearranged).
'no'+'tram'='notram'
'notram' anagrammed gives 'MATRON'.
'for' is the link.
(Other definitions for matron that I've seen before include "Old woman" , "Chief nurse" , "Former title of today's Senior Nursing Officer" , "Senior nurse" , "Head of nursing" .)