Undersized sort of shirt causing irritation? (6)
I believe the answer is:
titchy
'undersized sort' is the definition.
I know nothing about this answer so I can't tell whether this works.
'shirt causing irritation?' is the wordplay.
'shirt' becomes 't' (as in a T-shirt).
'causing irritation?' becomes 'itchy' (I've seen this before).
't'+'itchy'='TITCHY'
'of' is the link.
Can you help me to learn more?
(Other definitions for titchy that I've seen before include "Very small" , "Very short" , "Little" , "Tiny" .)