Fashionable place remembered in Texas having decorative sides (7)
I believe the answer is:
alamode
'fashionable' is the definition.
(I've seen this before)
'in texas having decorative sides' is the wordplay.
'in texas' becomes 'Alamo' ('Alamo' is part of 'texas').
'having' is a charade indicator (letters next to each other).
'sides' means to remove the middle letters (only the letters on the sides are used).
'decorative' with its middle removed is 'de'.
'alamo'+'de'='ALAMODE'
'place remembered' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Another definition for alamode that I've seen is " Fashionable".)