Suppose injured rep needs nurse (7)
I believe the answer is:
pretend
'suppose' is the definition.
(I've seen this before)
'injured rep needs nurse' is the wordplay.
'injured' is an anagram indicator.
'needs' says to put letters next to each other.
'nurse' becomes 'tend' (I've seen this before).
'rep' anagrammed gives 'pre'.
'pre'+'tend'='PRETEND'
(Other definitions for pretend that I've seen before include "Dissemble" , "Sham" , "Suppose" , "Imagine" , "Behave unnaturally" .)