Fifty-one clubs accepting your texted words (5)
I believe the answer is:
lyric
'texted words' is the definition.
(written song words)
'fifty-one clubs accepting your' is the wordplay.
'fifty-one' becomes 'LI' (Roman numerals).
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'accepting' means one lot of letters goes inside another.
'your' becomes 'yr'.
'li'+'c'='lic'
'lic' enclosing 'yr' is 'LYRIC'.
(Other definitions for lyric that I've seen before include "Song's words" , "Poetic lines" , "Song's text" , "Of poetry that expresses thoughts and feelings" , "Part of a libretto" .)