Sewer suffering same strain (10)
I believe the answer is:
seamstress
'sewer' is the definition.
(someone who sews)
'suffering same strain' is the wordplay.
'suffering' is an anagram indicator.
'strain' becomes 'stress' (synonyms).
'same' anagrammed gives 'seam'.
'seam'+'stress'='SEAMSTRESS'
(Other definitions for seamstress that I've seen before include "Midinette" , "Woman who sews for a living" , "Dressmaker" , "needlewoman" , "sewer" .)