Oddly, things with height are snug-fitting (5)
I believe the answer is:
tight
'snug-fitting' is the definition.
I can't tell whether this definition defines the answer.
'oddly things with height' is the wordplay.
'oddly' indicates alternate letters (letters in the odd-numbered positions are used).
'with' says to put letters next to each other.
'height' becomes 'ht' (abbreviation).
The alternate letters of 'things' are 'tig'.
'tig'+'ht'='TIGHT'
'are' is the link.
Can you help me to learn more?
(Other definitions for tight that I've seen before include "reluctant to buy a round?" , "reluctant to part with money" , "Secure" , "Lit" , "Closely constrained, constricted" .)