Azed

[JF85]

13a. Cable to stop short: 'Henry, I ...' and Eliza's disturbed issue in bits (12)

I have HALTERIA.IZE and assume the missing letter is L, but why? It starts with an anagram of HAL and ends with an anagram of ELIZA, but I can't fit TERI in the middle

[JJ109]

halser (alternative spelling of hawser!) + serialize

[JJ109]

Halser - definition cable
Hal (henry)
Collision letters SER (undefined)

Serialize - definition in bits
SER (collision letters undefined)
Ialize (anagram of 1 + Eliza)

[JF85]

Aha! That goes back to my earlier thinking that HALT was the stop short.

Many thanks JJ109.

[depresion]

Down to last few, but would appreciate help with 29a and 31a. Still struggling to work with the special instructions - most of my answers have been more luck than judgement!
29 Liner, maybe? Thousand on one swan,
belly fed with recipe (12)TRA?P?E???MAN
31 Rearing up, returning diploma,
confirmed ‘USA crawling with Reds’ (12) CAP?E????RED
Thanks!

[JJ109]

29a TRUMPETERMAN
Trumpeter (swan)
Belly (tum) fed with R(ecipe) = TRUM
Peter (collision letters = undefined)

Peterman (liner!!!)
Peter (collision letters undefined)
Man = M(1000) "on" AN (one)

31a CABREASSURED
Cabre (rearing up in heraldic terms)
Cab = returning diploma =BAC(calaureate reversed)
RE = collision letters undefined

Reassured = confirmed
RE = collision letters undefined
Assured = anagram of USA and reds